CH. 13 Flashcards Preview

Ag genetics > CH. 13 > Flashcards

Flashcards in CH. 13 Deck (10):
1

Correlated Response to Selection

Genetic change in one or more traits resulting from selection for another

2

Pleiotropy

The phenomenon of a single gene affecting more than one trait

3

Genetic Correlation

(1) A measure of the strength (consistency, reliability) of the relationship between breeding values for one trait and breeding values for another trait; (2) A measure of pleiotropy

4

Phenotypic Correlation

A measure o the strength (consistency, reliability) of the relationship between performance in one trait and performance in another trait

5

Environmental Correlation

A measure of the strength (consistency, reliability) of the relationship between environmental effects on one trait and environmental effects on another trait.

6

Compensatory Grain

A relative increase in the growth rate of thin animals after they are placed on adequate feed. They tend to compensate for being underweight.

7

Direct Response to Selection

Genetic change in a trait resulting from selection for that triat

8

Indirect Selection

Selection for one trait as a means of improving a genetically correlated trait

9

Direct Selection

Selection for a trait as a means of improving that same trait

10

indicator trait

A trait that may or may not be important in itself, but it selected for as a way of improving some other genetically correlated trait.