Question

Select the incorrect statement.
A. Inbreeding increases homozygosity
B. Inbreeding is essential to evolve pure lines in any animal
C. Inbreeding selects harmful recessive genes that reduce fertility and productivity
D. Inbreeding helps in the accumulation of superior genes and elimination of undesirable genes

Answer 1

Animal husbandry is the process of rearing animals including fishes. It requires a lot of practical knowledge to lead successful livestock. One should know how to develop the best quality progeny from the best. This can involve breeding with different types of species.

Complete answer: The branch of science delaying the agriculture of animals that are raised for meat, fibre, eggs, and other products. It involves day-to-day care of the animals providing them with the best quality food and nutrition. Dairy farming, cattle farming, bee farming, poultry farming, etc. come under animal husbandry. This helps us in the economic sector of the country. Inbreeding is when closely related organisms are mated. The DNA is retrained to be shuffled in this method. It helps to create pure lines. Inbreeding enhances the smaller herd size but also increases the chances of expressing recessive character in the progenies, etc. It deprives the progeny of having different unique features. There can be inbreeding depression. There are certain advantages also like getting improved species or superior species of both males and females.
Option A: Inbreeding increases homozygosity: Closely related organisms have almost the same genes. So the further progenies also have the same gene pool thus increasing the homozygosity.
Option B: Inbreeding is essential to evolve pure lines in any animal: It will give the progenies of almost the same genes thus pure lines of the same characters are produced.
Option C: Inbreeding selects harmful recessive genes that reduce fertility and productivity: Inbreeding does not select the harmful recessive genes rather choose the superficial genes that will increase fertility and productivity.
Option D: Inbreeding helps in the accumulation of superior genes and elimination of undesirable genes: It will enhance the good features and increase fertility eliminating the harmful and undesirable genes.
So the answer is option C: Inbreeding selects harmful recessive genes that reduce fertility and productivity.

Note: There are different types of breeding are as follows-
a. Out-breeding is crossing between two different breeds with absolutely no common hereditary. This is done to introduce new characters to the breeding line. They have unrelated genetic material.
b. Out-crossing is the technique of crossing over between two animals of the same breed but not having the same ancestry up to at least 5-6 generations.
c. Cross-breeding is when the superior breed male is mated with the superior breed female to give the new animal the best qualities. This is done to produce an even better progeny of animals.