Predicting Repeatability based on Heritability
If the heritability of a trait is 0.3, repeatability for same trait can be:
- 0.25
- 0.05
- 0.15
- 0.45 — Correct Answer
Explanation:
Correct Answer: 0.45
Since Repeatability is the upper limit of Heritability (broad sense), the value of heritability cannot exceed repeatability.
Here, repeatability = 0.3. So heritability must be ≤ 0.3. A value of 0.45 > 0.3, which is NOT possible.
Rule: r ≥ H²B ≥ h²N
| Option | Possible? | Reason |
|---|---|---|
| 0.25 | ✓ Yes | 0.25 < 0.3 |
| 0.05 | ✓ Yes | 0.05 < 0.3 |
| 0.15 | ✓ Yes | 0.15 < 0.3 |
| 0.45 | ✗ NOT possible | 0.45 > 0.3 (repeatability) |
- Repeatability = (VG + EP) / VP → always ≥ VG/VP = H²B
- MPPA (Most Probable Producing Ability) uses repeatability to estimate future performance.
📚 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.
