Question Papers of CBSE 12th Board

Hi I want the question paper of Biology of 12th class of CBSE board so can you please provide me?

[Nitin Sharma]

Ok, as you want the question paper of Biology of 12th class of CBSE board so here I am providing you.

CBSE 12th Biology question paper

Name the material used as matrix in gel-electrophoresis and mention its role.

State one reason for adding blue-green algae to the agricultural soil

Give one example each of a fungus which reproduces by :
(a) budding
(b) conidia

State one reason why breast-feeding the baby acts as a natural
contraceptive for the mother.

Identify and write the correct statement :
(a) In Grasshopper males two sex chromosomes are X and Y type.
(b) In Grasshopper males there exist XO type of sex-determinants.

What will happen if DNA replication is not followed by cell division in a eukaryotic cell ?

Name the two gases contributing maximum to the green house effect.

Write the level of biodiversity represented by a mangrove. Give another example falling in the same level.

For more questions here is the attachment.

CBSE 12th Biology question paper