Differentiate between Parthenocarpy and Parthenogenesis. Give one example of each.

Draw a diagram of a mature human sperm. Label any three parts and write their functions.

(a) Expand VNTR and describe its role in DNA fingerprinting.

(b) List any two applications of DNA fingerprinting technique.

Medically it is advised to all young mothers that breastfeeding is best for their new-born babies. Do you agree? Give reasons in support of your answer.

Explain the mechanism of ‘sex determination’ in birds. How does it differ from that of human beings?