integrated applied science

Question 1

4 forces that drive genetic change

Answer 1

• genetic drift
• mutation
• selection
• migration

Question 2

inbreeding coefficient equation

Answer 2

= 2 x probability that the animal has the allele

1/2) to the (number of animals in historical line from a common grandparet to the individual

Question 3

number of viable males and females used for breeding in a population

Answer 3

Ne

effective size of population

Question 4

Ne (genetics) equation

Answer 4

Ne = (4 x number of femals x number of males) / (number of males + number of females)

Question 5

define heterozygous

Answer 5

carrying 2 different alleles at same locus

Question 6

define homozygous

Answer 6

carrying same allele twice at locus

Question 7

identity by descent

Answer 7

probability that offsring will have same alleles as shared grandparent

Question 8

foal immunodeficiency syndrome is seen in (breed and age)

Answer 8

fell and dale ponies at 2-4 weeks old

Question 9

inbreeding depression define

Answer 9

inbred animals have compromised fitness

Question 10

rate of inbreeding defien

Answer 10

change in average breeding coefficient over time/generations

Question 11

effective population size is proportional to

Answer 11

rate of inbreeding

Question 12

estimated breeding values are calculated from

Answer 12

performance of family members

Question 13

genomic breeding values calculated from

Answer 13

looking at animals own genome

Question 14

selection intensity define

Answer 14

gap between population mean and mean of selected individulas

Question 15

PIN (profit index) selects for

Answer 15

improved milk production

Question 16

profitable lifetime index reflects

Answer 16

financial change if used for breeding