Heritability Level for Effective Individual and Pedigree Selection

Question

Individual selection and pedigree selection are more effective when the heritability of the trait is:

Select an answer

Individual selection and pedigree selection are more effective when the heritability of the trait is:

  1. Low
  2. Medium
  3. High — Correct Answer
  4. Zero
Explanation:
Correct Answer: High

Individual selection and pedigree selection are more effective when the heritability of the trait is high, because phenotype is a good indicator of genotype only when h² is high.

Selection Methods by Heritability
Heritability Effective Selection Methods
High h² Individual selection, Pedigree selection
Low h² Progeny testing, Family selection (sib selection)

Additional notes:

  • Individual selection is the simplest, most rapid, and most commonly used basis of selection.
  • Individual selection is most accurate aid to selection.
  • Progeny testing is the most effective and best basis of selection overall.

📚 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.

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