Quiz 4 Flashcards Preview

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Flashcards in Quiz 4 Deck (14):
1

Dominance type that is easier to perform selection for simply-inherited traits (homozygotes vs. heterozygotes)

Partial

2

Whose genotype is normally being determined in test matings?

sires

3

The ability of an individual and its corresponding phenotype and genotype to contribute offspring to the next generation is:

fitness

4

T/F: Breeding value represents only that part of genotypic value that can be transmitted from parent to offspring

True

5

Progeny difference= 1/2____

Breeding value

6

Genotype (G)= Breeding value +

GCV

7

Producing Ability is the performance potential of an individual for a what trait

repeated

8

Give an ex. of a Permanentt Environmental Effect

injury

9

Regression Coefficient

r

10

Which traits have moderate heritabilites (0.2-0.4)?

production

11

Name two ways to improve Heritability and Repeatability

Environment and accurate measures

12

What are the 3 directly proportional facotrs that effect genetic change?

accuracy of selection, selection intensity, and genetic variation

13

The risk that the true breeding values of replacements will be significantly poorer than expected is:

Selection risk

14

Decribe Contemporaries

A group of animals that have experienced a similar environment with respect to the expression of the trait