Purpose of Reciprocal Recurrent Selection
Reciprocal recurrent selection (RRS) is more suitable for poultry selection & RRS is used to improve-
- GCA
- SCA
- Both — Correct Answer
- None
Explanation:
Correct Answer: Both (GCA and SCA)
Reciprocal Recurrent Selection (RRS) is designed to simultaneously improve both General Combining Ability (GCA) and Specific Combining Ability (SCA). It is especially suitable for poultry and other species where crossbreeding is practiced.
Types of Recurrent Selection
| Method | Improves | Gene Action |
|---|---|---|
| Simple Recurrent Selection | GCA | Additive |
| Recurrent Selection for SCA | SCA | Non-additive |
| Reciprocal Recurrent Selection (RRS) | Both GCA & SCA | Both |
- GCA (General Combining Ability) is based on additive gene action.
- SCA (Specific Combining Ability) is based on non-additive gene action.
- RRS is the most comprehensive selection method for improving combining ability.
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
