Class – XII (Year 2010)

Subject – Biology

General Instructions:

1. All Questions are compulsory.

2. Wherever necessary, the diagrams drawn should be neat and properly labelled.

Q.1 Mention the site where syngamy occurs in amphibians and reptiles respectively.

Q.2 How is now - blindness caused in humans ?

Q.3 How is the action of axonuclease different from that of endonuclease ?

(E-Book) CBSE Board Class 12th Papers PDF : Biology

Courtesy: cbse.nic.in