Question

The best method to eliminate harmful recessive genes in the technique of animal breeding is ...........

• A. inter-specific hybridization.
• B. outcrossing
• C. in-breeding
• D. cross-breeding

Hint:

In animal breeding, in-breeding can be used to eliminate harmful recessive genes, but it requires careful management to avoid negative effects.

Answer 1

The Correct Option is C

Step 1: Understanding the question.
The question asks about the best method to eliminate harmful recessive genes in animal breeding.
Step 2: Analyzing the options.
(A) inter-specific hybridization: This refers to the breeding of animals from different species and is not the best method to eliminate recessive genes.
(B) outcrossing: Outcrossing is the process of breeding animals from different families within the same species. While it can introduce genetic diversity, it does not specifically target harmful recessive genes.
(C) in-breeding: Correct — Inbreeding involves breeding closely related animals to concentrate desirable traits, but also helps eliminate harmful recessive genes when done carefully.
(D) cross-breeding: Cross-breeding refers to the mating of animals from different species or breeds and is not the most efficient method for eliminating harmful recessive genes.
Step 3: Conclusion.
The correct answer is (C) in-breeding, as it is the technique most effective in eliminating harmful recessive genes.