Quiz 4

Question 1

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

Answer 1

Partial

Question 2

Whose genotype is normally being determined in test matings?

Answer 2

sires

Question 3

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

Answer 3

fitness

Question 4

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

Answer 4

True

Question 5

Progeny difference= 1/2____

Answer 5

Breeding value

Question 6

Genotype (G)= Breeding value +

Answer 6

GCV

Question 7

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

Answer 7

repeated

Question 8

Give an ex. of a Permanentt Environmental Effect

Answer 8

injury

Question 9

Regression Coefficient

Answer 9

r

Question 10

Which traits have moderate heritabilites (0.2-0.4)?

Answer 10

production

Question 11

Name two ways to improve Heritability and Repeatability

Answer 11

Environment and accurate measures

Question 12

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

Answer 12

accuracy of selection, selection intensity, and genetic variation

Question 13

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

Answer 13

Selection risk

Question 14

Decribe Contemporaries

Answer 14

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