Identify, A, B, C, D, E and F in the table given below :

(a) Draw a diagram of a sectional view of human ovary and label (i) Primary follicle; (ii) Tertiary follicle; (iii) Graafian follicle and (iv) Corpus luteum.

(b) Write the function of corpus luteum.

OR

(a) Draw a diagram of Pistil showing pollen tube growth in angiosperm and label (i) Stigma; (ii) male gametes; (iii) micropyle and (iv) Ovule.

(b) Write the function of micropyle.

What was the challenge for production of insulin using rDNA techniques ? How did Eli Lilly produce insulin using rDNA technology?

Name the organism from which the ‘cry’ genes are isolated. Mention with the help of suitable example why and how bio-technologists have made use of ‘cry’ genes.

Excessive and continuous use of pesticides has resulted in evolution of some new species of pests. Explain what must have led to this. What is this type of evolution called ?