Problem: The following variances were calculated for two traits in a herd of hogs.TraitVPVGVABack fat28.913.77.98Body length49.127.212.4Part A. Calculate broad-sense (H2 ) heritability for back fat in this herd. Enter your answer to three decimal places (example: 0.123).Part B. Calculate broad-sense (H2 ) heritability for body length in this herd. Enter your answer to three decimal places (example: 0.123).Part C. Calculate narrow-sense (h2 ) heritability for back fat in this herd. Enter your answer to three decimal places (example: 0.123).Part D. Calculate narrow-sense (h2 ) heritability for body length in this herd. Enter your answer to three decimal places (example: 0.123).Part E. Which of the two traits will respond best to selection by a breeder?A. back fatB. body length

FREE Expert Solution

Broad Sense Heritability: estimates percentage of genetic variance using all components of genetic variance

: ratio of genotypic variance (VG) to phenotypic variance (VP)

Narrow Sense Heritability: estimates percentage of genetic variance using only additive variance

: ratio of additive genotypic variance (VA) to phenotypic variance (VP)

: used to determine population response to artificial selection

View Complete Written Solution
Problem Details

The following variances were calculated for two traits in a herd of hogs.

Trait

VP

VG

VA

Back fat

28.9

13.7

7.98

Body length

49.1

27.2

12.4


Part A. Calculate broad-sense (H2 ) heritability for back fat in this herd. Enter your answer to three decimal places (example: 0.123).

Part B. Calculate broad-sense (H2 ) heritability for body length in this herd. Enter your answer to three decimal places (example: 0.123).

Part C. Calculate narrow-sense (h2 ) heritability for back fat in this herd. Enter your answer to three decimal places (example: 0.123).

Part D. Calculate narrow-sense (h2 ) heritability for body length in this herd. Enter your answer to three decimal places (example: 0.123).

Part E. Which of the two traits will respond best to selection by a breeder?

A. back fat
B. body length

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Heritability concept. You can view video lessons to learn Heritability. Or if you need more Heritability practice, you can also practice Heritability practice problems.