Question 1

alleles

Accepted Answer

pairs of genes.

Question 2

codominance

Accepted Answer

a blending of genes in pair is expressed.

Question 3

complete dominance

Accepted Answer

one gene completely masks the presence of the other.

Question 4

contemporary group

Accepted Answer

similarly fed and managed groups of animals.

Question 5

crossbreeding

Accepted Answer

mating of unrelated animals.

Question 6

generation interval

Accepted Answer

time needed to replace each generation.

Question 7

genetics

Accepted Answer

study of heredity.

Question 8

genotype

Accepted Answer

an animal's genetic code.

Question 9

heritability

Accepted Answer

percentage of trait that results from genetics.

Question 10

heterosis

Accepted Answer

increase in performance that exceeds parents' average.

Question 11

heterozygous

Accepted Answer

allele that has one copy each of the two possible genes.

Question 12

homozygous

Accepted Answer

allele with two copies of identical genes.

Question 13

inbreeding

Accepted Answer

mating of closely related animals.

Question 14

incomplete dominance

Accepted Answer

both genes in pair are expressed.

Question 15

linebreeding

Accepted Answer

mating of distant relatives.

Question 16

outbreeding

Accepted Answer

crossbreeding.

Question 17

phenotype

Accepted Answer

expression of genetic code.

Question 18

qualitative traits

Accepted Answer

trait controlled by only a single pair of genes.

Question 19

quantitative traits

Accepted Answer

trait controlled by several pairs of genes.

Question 20

selection intensity

Accepted Answer

top percentage of animals used for production of next generation.

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