GENE FREQUENCIES

Question 1

study of how genes and genotypic frequencies change and thus change genetic merit in a population.

Answer 1

Population Genetics

Question 2

total of all individuals in a group that inhabit a particular area

Answer 2

Population

Question 3

proportion of loci in a population that contain a particular allele

Answer 3

Gene / Allele frequency

Question 4

frequency of genotype that occurs in a population.

Answer 4

Genotypic frequency

Question 5

proportion of individuals in a population expressing a particular phenotype

Answer 5

Phenotypic frequency

Question 6

changes in the chemical composition of a gene that alters DNA; production of new alleles; occurrence is very small.

Answer 6

Mutations

Question 7

change in gene freq. that can’t be controlled in direction but can be controlled in amount by the size of the population.

Answer 7

Genetic drift

Question 8

process of bringing new breeding stock into a population

Answer 8

Migration

Question 9

process of allowing animals to be parents more than others

Answer 9

Selection

Question 10

some animals are more suited / have more natural opportunity to be parents than others

Answer 10

Natural selection

Question 11

allows certain animals more opportunity to produce offspring than others

Answer 11

Artificial selection

Question 12

set of genetic information carried by all interbreeding members

Answer 12

Gene pool

Question 13

choice of a mating partner independent for that trait

Answer 13

Random mating

Question 14

math model used to calculate gene frequencies in real populations

Answer 14

Hardy – Weinberg Law (Godfrey H. Hardy & Wilhelm Weinberg)

Question 15

population where the allele frequency remains constant from one generation to the next

Answer 15

Genetic Equilibrium