Ab EXAM 1

Extra questions

A ___ is an observable or measurable characteristic of an individual

Trait

Sub-tropically adapted breeds share similar genotypes for heat tolerance and therefore is considered to be of similar ___

Biological trait

Read the following statement and make corrections if needed

“Foul temperament is a common trait of this genetic line”

Mark out trait and put phenotype

Give an example of an observable trait and measurable trait

Observable: color

measurable: weaning weight

What does each term stand for in the following equation P = G+E

P = Phenotype

G = Genotype

E = Environment

A ____ is an observed category or measure of performance for a trait of an individual

Phenotype

How to write an interpretation

For every ___ (increase or decrease) in ____, ____ (increases or decreases) an average of ____

Overdominance

Heterzygote more than homozygotes

Complete dominance

Heterozygote is equal to dominant homozygote

Partial dominance

The heterozygite leans more towards one of the homozygotes than another

GCV =

GV - BV

___ is often referred to as the additive gene effects.

Breeding Value

GCV = ___ + ___ effects

Dominance, epistasis

__ is part of the genotypic value that is not transmitted from parent to offspring

Gene Combination Value

EPD = __ BV

½

List 3 factors influencing effectiveness of selection

Degree of dominance, fitness, and initial gene frequency

How to find gamete amount

2^n