Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Which one out of the eurythermal or stenothermal species, is likely to survive increased global temperatures? Give one reason for your answer?

Pick out the ancestral line of cycads from the list given below-
Ferns, herbaceous lycopods, seed ferns and horsetails.

Write any four adaptations found in xerophytic plants to reduce transpiration.

What function do methanogens perform in the rumen of cattle?

What are protooncogenes?

Define mortality.

Name two STDs which can be transmitted through contaminated blood.

OR

Name two sexually transmitted diseases that do not specifically affect the reproductive organs.

The GEAC refers to:

1. Genetic Engineering Authorised Company.
2. Genetic Engineering Approval Committee.
3. Genetic Engineering American Company.
4. Genetic Elements and Corrections.

Name the types of cells that produce antibodies.

Why have many animals not evolved thermo regulation?