Question

Which one of the following is NOT an advantage of inbreeding?

• A. It exposes harmful recessive genes that are eliminated by selection.
• B. Elimination of less desirable genes and accumulation of superior genes takes place due to it
• C. It decreases the productivity of inbred population, after continuous inbreeding.
• D. It decreases homozygosity.

Answer 1

The Correct Option is C

Inbreeding can lead to a reduction in genetic diversity, which can result in decreased fitness and productivity over generations due to increased expression of harmful recessive alleles and reduced ability to adapt to changing environments. 
Options (A), (B), and (D) can be considered as potential advantages or outcomes of inbreeding to varying extents, whereas option (C) highlights a negative consequence of inbreeding.

The correct option is (C): It decreases the productivity of inbred population, after continuous inbreeding.

Answer 2

The process of mating between closely related individuals, species, or breeds is known as inbreeding. Retaining favourable traits and getting rid of undesirable ones can be achieved through inbreeding. It has several advantages and disadvantages.

Advantages:

1. It exposes harmful recessive genes that are weeded out by selection.
2. Less favorable genes are eliminated, and more favorable genes are accepted.
3. It reduces the homozygosity.

Disadvantages:

1. Fertility and productivity are decreased by persistent inbreeding.
2. Causes inbreeding depression, or a decline in a population's biological fitness among its members.

So, the correct option is (C): It decreases the productivity of inbred population, after continuous inbreeding.