Relationship Between Inbreeding Coefficient and Coefficient of Relationship

Question

The value of inbreeding coefficient (Fx) is always ________ of coefficient of relationship (Rxy).

Select an answer

The value of inbreeding coefficient (Fx) is always ________ of coefficient of relationship (Rxy).

  1. 2 times
  2. 4 times
  3. Square root
  4. Half — Correct Answer
Explanation:
Correct Answer: Half

Fx = ½ × Rxy, i.e., the inbreeding coefficient is always half of the coefficient of relationship.

Verification with Examples
Mating Rxy Fx (= ½ Rxy)
Parent-offspring / Full-sib mating 0.50 (50%) 0.25 (25%)
Half-sib / Double first cousin mating 0.25 (25%) 0.125 (12.5%)
Single first cousin mating 0.125 (12.5%) 0.0625 (6.25%)

📚 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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