Section A
Q1.
(a) What is the principle of independent assortment in inheritance of genes? Describe the experiment used by Mendel.
(b) Explain the mechanisms which promote cross-pollination.
(c) Why is quarantine regulation on seeds needed? Explain the actions to be recommended for this purpose.
(d) Describe the factors affecting the rate of transpiration and its significance in crop production.
(e) Discuss the genetic basis of heterosis and inbreeding depression.