Question

Which of the following is not true for inbreeding?

• A. It causes inbreeding depression after a few generations.
• B. It always increases the productivity.
• C. It is used to produce a pure line.
• D. It leads to homozygosity.

Answer 1

The correct option is B It always increases the productivity.

Inbreeding leads to increase in homozygosity. This, in recessive alleles, may cause expression of harmful effects. Also, inbreeding depression may lead to loss of fitness in progenies, thus decreasing productivity in some cases.