(a) Differentiate between a template strand and coding strand of DNA.

(b) Name the source of energy for the replication of DNA.

How did industrialization play a role in Natural Selection of light and dark coloured moth in England?

OR

What do you infer from the resemblance between flying squirrel and flying phalanger with reference to their evolution?

A patient is down with Amoebiasis. List the symptoms that confirm this infection. Name the causative pathogen.

Explain succession of plants in xerophytic habitat until it reaches climax community.

A sugarcane has been affected by virus. How can a virus free cane be developed from it ? Explain the procedure.