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Meiosis I : Reductional Cell Division: Stages, Overview & Importance

Meiosis I : Reductional Cell Division: Stages, Overview & Importance

Irshad AnwarUpdated on 02 Jul 2025, 05:59 PM IST

Meiosis specialises in contributing to sexual reproduction in eukaryotic organisms: plants, animals, and fungi. Unlike mitosis, it brings about a reduction in the number of chromosomes by half to create gametes-sperm and eggs-genetically unique cells. Meiosis I is a topic of the chapter Cell Cycle and Cell Division in Biology.

This Story also Contains

  1. Meiosis I
  2. Meiosis I Stages
  3. Significance of Meiosis I
  4. Recommended Video for Meiosis I
Meiosis I : Reductional Cell Division: Stages, Overview & Importance
Meiosis I

Meiosis I

Meiosis I is a reductional cell division that halves the number of chromosomes. It changes a diploid to a haploid state so that gametes can then combine during reproduction without excessive chromosome numbers. The reduction is accomplished in two successive cell divisions: meiosis I and meiosis II.

Whereas mitosis produces two identical daughter cells, meiosis I produce two cells that differ from each other. The parent cell after prophase I, in which homologous chromosomes pair up, and anaphase I, during which the paired chromosomes separate. This way, by allowing for more genetic diversity through crossing over, all the resulting gametes will have a unique combination of genetic material, being thus a driver for evolutionary adaptation.

Also Read:

Commonly Asked Questions

Q: What is the role of the meiosis-specific cohesin subunit Rec8 in meiosis I?
A:
Rec8 is a meiosis-specific cohesin subunit that plays a crucial role in holding sister chromatids together during meiosis I. It is cleaved along the chromosome arms during anaphase I but remains intact at the centromeres until anaphase II, ensuring proper chromosome segregation.
Q: How does the concept of recombination nodules relate to crossing over in meiosis I?
A:
Recombination nodules are protein complexes visible under an electron microscope during prophase I. They mark the sites where crossing over occurs between homologous chromosomes, facilitating the exchange of genetic material.
Q: How does the behavior of cohesins at the centromeres during meiosis I contribute to proper chromosome segregation?
A:
Cohesins at the centromeres remain intact during meiosis I, keeping sister chromatids together. This ensures that homologous chromosomes, rather than sister chromatids, separate during anaphase I, maintaining the correct chromosome number in the resulting cells.
Q: How does the concept of meiotic drive relate to chromosome segregation in meiosis I?
A:
Meiotic drive refers to the preferential transmission of certain alleles or chromosomes during meiosis. In meiosis I, this could manifest as the preferential segregation of one homolog over another, potentially leading to distorted inheritance patterns.
Q: How does the concept of centromere drive relate to chromosome segregation in meiosis I?
A:
Centromere drive is the preferential transmission of chromosomes with "stronger" centromeres during female meiosis I. Stronger centromeres are more likely to orient towards the egg side of the meiotic spindle, increasing their chances of being retained in the oocyte rather than the polar body.

Meiosis I Stages

Meiosis I is studied under Prophase I, Metaphase I, Anaphase I and Telophase I.

Prophase I

  • It is the longest phase of meiosis I.

  • It is divided into five substages: leptotene, zygotene, pachytene, diplotene and diakinesis.

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Leptotene

  • The chromatin begins to condense to form chromosomes.

  • Chromosomes appear as thin and long threads.

  • By the end of this phase, chromosomes become visible under a microscope.

Zygotene

  • The pairing of the homologous chromosomes initiates in this phase.

  • The pairing of homologous chromosomes is called synapsis.

  • The synapsed homologous chromosomes appear in the form of bivalent chromosomes or tetrad of chromatids.

  • In the tetrad, two similar chromatids of the same chromosome are called sister chromatids and those of two homologous chromosomes are termed non-sister chromatids.

  • A filamentous ladder-like nucleoproteins complex, called a synaptonemal complex appears between the homologous chromosomes. It holds the homologous chromosomes together.

Pachytene

  • The exchange of parts between non-sister chromatids occurs during this phase.

  • It is called the crossing over.

  • Crossing over occurs through breakage and reunion of chromatid segments.

  • Breakage is called nicking. It is assisted by an enzyme endonuclease.

  • Reunion is termed annealing. It is aided by an enzyme ligase.

Diplotene

  • This phase involves pulling away the synapsed homologous chromosomes.

  • The point of attachment of the homologous chromosomes where crossing over occurs is called chiasma.

  • Homologous chromosomes remain attached only at chiasma.

  • There can be more than one chiasmata.

Diakinesis

  • It marks the terminalization of chiasma.

  • The nuclear membrane and nucleolus degenerate.

  • Chromosome recondenses and tetrad moves to the metaphase plate.

  • Spindle fibres begin to form.

  • When the diakinesis of prophase-I is completed than cell enters into metaphase-I.


Prophase I

Metaphase I

  • During this phase, bivalents arrange themselves on the metaphase plate.

  • Hence, a fully formed spindle and equatorial alignment of the chromosomes are seen during this phase.

  • The alignment of homologous chromosomes is independent of each other.

  • This is responsible for generating genetic variability.

Anaphase I

  • The homologous chromosomes of each bivalent separate from each other.

  • The separated homologous chromosomes move to opposite poles

  • Therefore, in this phase, the chromosomes separate and not the chromatids.

  • So, each chromosome will still have two sister chromatids.

  • Hence, anaphase I involve a reduction in the number of chromosomes.


Anaphase I

Telophase I

  • Two daughter nuclei are formed but the chromosome number is half the chromosome number of the mother cell.

  • This phase is not necessarily complete wholly.

  • The spindle disappears, but new nuclear envelopes need not form before the onset of meiosis II.

Cytokinesis I

  • It may or may not follow the telophase I.

  • When it occurs, it forms the dyad of cells.

Interkinesis

  • Following cytokinesis I, the cells enter interkinesis.

  • It is also known as intermeiotic interphase.

  • During this phase, there is no duplication or replication of DNA as the chromosomes are already duplicated.

Commonly Asked Questions

Q: How does the behavior of sister chromatids differ in meiosis I compared to mitosis?
A:
In meiosis I, sister chromatids remain attached at their centromeres and move together to the same pole during anaphase I. In contrast, during mitosis, sister chromatids separate and move to opposite poles during anaphase.
Q: How does the duration of prophase I compare to other phases of meiosis I?
A:
Prophase I is typically the longest phase of meiosis I. It involves several complex processes, including chromosome condensation, synapsis, and crossing over. The extended duration allows for these critical events to occur, ensuring genetic recombination and proper chromosome alignment.
Q: What is the role of chiasmata in meiosis I?
A:
Chiasmata are physical connections between homologous chromosomes that form during prophase I. They represent the sites of crossing over and play a crucial role in holding homologous chromosomes together until anaphase I, ensuring proper chromosome segregation.
Q: What would happen if homologous chromosomes failed to separate during anaphase I?
A:
If homologous chromosomes failed to separate during anaphase I, it would result in an abnormal distribution of chromosomes in the daughter cells. This could lead to aneuploidy (abnormal chromosome number) in the resulting gametes and potentially in offspring.
Q: Why is meiosis I called the "reductional division"?
A:
Meiosis I is called the "reductional division" because it reduces the chromosome number from diploid (2n) to haploid (n). This occurs when homologous chromosomes separate during anaphase I, resulting in daughter cells with half the original chromosome number.

Significance of Meiosis I

Meiosis I is essential in providing ways in which genetic diversity can take place. Through crossing over processes during prophase I and independent assortment that takes place in metaphase I leads to specific sets of genetic materials that form the gametes. Such genetic diversity is quite important for the survival as well as adaptation of species.

Since it allows for greater variability in the offspring; this way, they could become better adapted to changing environmental conditions. Meiosis I also provides for the decreased number of chromosomes from diploid to haploid so that when such gametes fuse during fertilisation. The correct number of chromosomes characteristic of the species is present in the zygote. Thus, meiosis I is recognised as a process of great importance in maintaining genetic integrity and therefore in promoting evolutionary success among sexually reproducing organisms.

Also Read:

Cell Cycle
Meiosis II
Difference Between Mitosis and MeiosisDifference Between Karyokinesis and Cytokinesis
Eukaryotic CellsProkaryotic Cells

Commonly Asked Questions

Q: What is the primary goal of meiosis I?
A:
The primary goal of meiosis I is to reduce the chromosome number by half, from diploid (2n) to haploid (n). This is achieved through the separation of homologous chromosomes, resulting in daughter cells with half the original number of chromosomes.
Q: How does meiosis I differ from mitosis?
A:
Meiosis I differs from mitosis in several key ways: 1) It reduces chromosome number by half, 2) It involves homologous chromosome pairing and crossing over, 3) It results in genetically diverse daughter cells, and 4) It is followed by a second division (meiosis II) without DNA replication.
Q: How does crossing over contribute to genetic diversity?
A:
Crossing over involves the exchange of genetic material between homologous chromosomes during prophase I. This process creates new combinations of alleles on each chromosome, increasing genetic diversity in the resulting gametes and, ultimately, in offspring.
Q: What is the significance of the metaphase plate in meiosis I?
A:
The metaphase plate in meiosis I is where paired homologous chromosomes align. Unlike in mitosis, where individual chromosomes align, the alignment of homologous pairs in meiosis I is crucial for their proper separation during anaphase I.
Q: What is synapsis and why is it important in meiosis I?
A:
Synapsis is the pairing of homologous chromosomes during prophase I of meiosis I. It is important because it allows for genetic recombination through crossing over, which increases genetic diversity in the resulting gametes.


Recommended Video for Meiosis I



Frequently Asked Questions (FAQs)

Q: What is the role of the meiosis-specific cohesin subunit Smc1β in meiosis I?
A:
Smc1β is a meiosis-specific cohesin subunit that plays a crucial role in sister chromatid coh
Q: How does the concept of meiotic checkpoint proteins relate to the progression of meiosis I?
A:
Meiotic checkpoint proteins monitor various aspects of meiosis I, such as DNA damage, synapsis, and recombination. They can halt meiotic progression if errors are detected, ensuring the fidelity of chromosome segregation and the production of viable gametes.
Q: What is the significance of the synaptonemal complex lateral element protein SYCP3 in meiosis I?
A:
SYCP3 is a major component of the lateral elements of the synaptonemal complex. It plays a crucial role in the assembly and maintenance of the synaptonemal complex during prophase I, facilitating chromosome pairing, synapsis, and recombination.
Q: What is the role of the synaptonemal complex central element protein SYCE2 in meiosis I?
A:
SYCE2 is a protein component of the central element of the synaptonemal complex. It plays a crucial role in the assembly and stability of the synaptonemal complex during prophase I, facilitating synapsis and crossing over between homologous chromosomes.
Q: What is the significance of the polar body formation in female meiosis I?
A:
In female meiosis I, one daughter cell becomes the secondary oocyte, while the other becomes a small polar body. This unequal division conserves cytoplasmic resources in the oocyte, which is crucial for early embryonic development if fertilization occurs.
Q: How does the concept of chromosomal inversions affect crossing over during meiosis I?
A:
Chromosomal inversions can suppress crossing over in the inverted region during meiosis I. This is because the inverted segment cannot properly align with its homologous partner, reducing the likelihood of recombination in that area.
Q: What is the significance of the chiasma terminalization during late prophase I?
A:
Chiasma terminalization is the apparent movement of chiasmata towards the ends of chromosomes during late prophase I. This process helps to resolve the physical connections between homologous chromosomes, facilitating their proper separation during anaphase I.
Q: How does the concept of meiotic silencing of unpaired chromatin (MSUC) relate to meiosis I?
A:
MSUC is a process that silences chromosomal regions that fail to synapse during meiosis I. This mechanism helps to prevent the expression of potentially harmful genes from unpaired chromosomal segments and may play a role in maintaining genome integrity.
Q: How does the concept of crossover interference relate to genetic recombination in meiosis I?
A:
Crossover interference is the phenomenon where the occurrence of one crossover event reduces the likelihood of another crossover nearby on the same chromosome pair. This helps to ensure a more even distribution of crossovers along chromosomes during meiosis I.
Q: What is the significance of the bouquet-like arrangement of telomeres during early prophase I?
A:
The bouquet-like arrangement of telomeres during early prophase I brings homologous chromosomes into close proximity. This facilitates homology searching and pairing, which are crucial for successful synapsis and subsequent crossing over.
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Directions for question :

M/s Deloitte Touche Tohmatsu Limited, one of the top four audit and accounting firms in the world with headquarters at London, UK, and with an operational presence in 153 countries, hires Management Trainees (MT) from all the premier management institutes of India thrice every year, in the months of January, May and September.

Each new group of Management Trainees (MT) have to go through a four month rigorous training schedule, after which they have to pass through a test consisting of a written assessment and a case-analysis. The top hundred ranked Management Trainees (MT) based on the performance in the test are confirmed as Management Executives (ME). The rest are given the opportunity of undergoing the training for four months one more time along with the next batch of Management Trainees (MT) and then passing through the subsequent test consisting of the written assessment and case-analysis. The Management Trainee (MT) who fails to get confirmed as a Management Executive (ME) the second time is fired.

The scatter-graph below depicts the number of Management Trainees (MT) at Deloitte taking the tests from January 2020 till May 2022, and the vis-à-vis hired Management Trainees (MT) at Deloitte who were fired :

It is also known that for the month of September 2019 at Deloitte, 96 hired Management Trainees (MT) failed to be confirmed as a Management Executive (ME) the first time, and that 36 hired Management Trainees (MT) were fired. 

Question :

In which test did the minimum number of Management Trainees (MT) get confirmed as a Management Executive (ME) in the second attempt ?

Option: 1

September 2020

 

 


Option: 2

May 2021


Option: 3

January 2021

 


Option: 4

January 2022 


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Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

Assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the first customer's order be considered closed ?

 

Option: 1

6.15 pm

 

 


Option: 2

6.17 pm

 


Option: 3

6.18 pm

 


Option: 4

6.20 pm


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Directions for question :

Six sticks of equal lengths were kept in the vertical position in an empty flower-vase, to be arranged at the six corners of a regular hexagon. The two ends of each of the sticks were of different colours. 

The top ends of the sticks were one of each of the following colours – Red, Cyan, Pink, Brown, Black and Green. The bottom ends were one of each of the following colours – Blue, Yellow, White, Orange, Purple and Grey. Both the sets of colours mentioned were in no particular order.

It was also known that :

a) The stick with the red colour was opposite to the stick with the blue colour

b) There were exactly two sticks whose both ends had colours whose names started with the same letter

c) The stick with the grey colour was adjacent to the stick with the white colour

d) The stick with the cyan colour was adjacent to both the sticks with the brown colour and the one with the blue colour

e) The stick with the purple colour was adjacent to both the sticks with the grey colour and the one with the green colour

f) The stick with the white colour was opposite to the stick with the green colour

Question :

What was the colour of the bottom end of the stick having brown colour at the top end ?

Option: 1

 White 

 


Option: 2

Yellow 


Option: 3

Black

 


Option: 4

Grey


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Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

Assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the third customer's order be considered closed ?

 

Option: 1

6.28 pm

 


Option: 2

6.35 pm

 


Option: 3

6.38 pm


Option: 4

6.45 pm


Read Complete Answer

Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis, when would the second customer's order be considered closed ?

Option: 1

6.20 pm

 

 


Option: 2

6.18 pm


Option: 3

6.15 pm

 


Option: 4

6.12 pm


Read Complete Answer

Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis, when would the third customer's order be considered closed ?

 

Option: 1

6.22 pm

 


Option: 2

6.25 pm


Option: 3

6.28 pm 


Option: 4

6.30 pm


Read Complete Answer

Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

A fourth customer comes in and orders two plates of French Toast at 6.24 pm. Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis. For exactly how many minutes would one of the friends be idle from 6.00 pm till serving the last customer, assuming that the four customers were the only ones to have come in within the period being discussed ?

Option: 1

9

 


Option: 2

13


Option: 3

18


Option: 4

21


Read Complete Answer

Directions for question:

Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'. 

They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared. 

They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders. 

On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries. 

On the backdrop of the above information answer the questions given :

Question: 

Had Niloy been absent on that day, and assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the fourth customer's order (refer to the previous question) be considered closed ?

Option: 1

6:38 pm

 


Option: 2

6:42 pm

 


Option: 3

6:47 pm


Option: 4

6:49 pm


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Directions for question:

The bar-graph given below shows the foreign exchange reserves of Nepal (in million Rupees) from 2014 to 2021. Answer the following questions based on the graph :

Question:

What was the percentage increase (rounded to the nearest integer, if deemed necessary) in the foreign exchange reserves in 2020 over 2016 ?

Option: 1 None

Option: 2 None

Option: 3 None

Option: 4 None

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Directions for question:

The Jadavpur University’s Prince Anwar Shah Road hostel consists of two large separate buildings, one for the ladies and the other for the gents, while having a common kitchen and dining hall. It is the hostel of the CS and the EEC department of engineering students of the university.

In recognition of the growing dissatisfaction and hence complaints among the inmates of the hostel regarding the menu served for dinner, the Dean of the engineering department, Dr Aparesh Sanyal, personally decided to investigate the matter. He set about collecting information about the preference of dinner among the inmates, separately from the gents and the ladies wing of the hostel.

Dr Sanyal was able to gather the following partial information :  

 

Hostel inmates

Menu preference for dinner

Total

Egg Meal

Fish Meal

Chicken Meal

Gents

    

20

  

Ladies

      

64

Total

  

60

    

 

The Warden of the hostel was consulted, who after investigation declared that the following facts were clear :

1. Forty percent of the hostel inmates were ladies

2. One-third of the gentlemen inmates preferred an egg meal for dinner

3. Half the hostel inmates preferred either fish meal or chicken meal

Question:

What proportion of the lady hostel inmates preferred a fish meal for dinner ?

 

 

Option: 1

0.25

 

 


Option: 2

0.50

 


Option: 3

0.75

 


Option: 4

1.00 


Read Complete Answer

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