Study the following statements regarding inbreeding and select the incorrect ones.
(i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined.
(ii) It increases homozygosity.
(iii) It also helps in elimination of less desirable genes.
(iv) Continued inbreeding increases fertility and productivity.

Options

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)

Answer

D

Explanation

Inbreeding strategies allow the desirable qualities of more closely related individuals to be continued within the same breed for `4-6` generations. It increases homozygosity and thus, in necessary for evolving a pure line. Continued inbreeding, especially close inbreeding usually leads to reduce fertility and even productivity. This is called inbreeding depression.