HELLO,

Yes it is possible to get admission into some central universities through CUET by just selecting Biology as a domain subject. However this depends on the specific course and college requirements like some programs like Bsc in Biology , Botany , Zoology etc. might solely rely on Biology as a domain subject, in the field like computer science or engineering may require additional subjects like mathematics and general test . It will be better to check the eligibility criteria of each university and subject mapping for the interested course before applying

Hope this Helps!