Lecture 22A

Question 1

the modern synthesis

Answer 1

our current understanding of how evolution works

Question 2

the modern synthesis defines biological evolution as

Answer 2

change in allele frequencies in a population over one or more generations

Question 3

the modern synthesis also incorporates.._________ as additional processes that cause evolution

Answer 3

mutation gene flow and genetic drift

Question 4

population genetics is the study of________ within and among natural populations and the_____ evolutionary processes that generate and maintain this variation

Answer 4

genetic variation, evolutionary processes

Question 5

population

Answer 5

a group of individuals of the same species living in the same area

Question 6

gene pool

Answer 6

all alleles in the population

Question 7

any 2 flies differ in what percent of the genomic sequence?

Answer 7

~1%

Question 8

humans vary by what percent in their genomic sequence

Answer 8

.1%

Question 9

levels of genetic variation are related to

Answer 9

historical population sizes

Question 10

mutation

Answer 10

generation of new alleles

Question 11

recombination

Answer 11

generates recombinant genotypes/chromosomes

Question 12

how do you calculate allele frequency

Answer 12

of individuals

number of copies of a given individual/total number of genes

(eg: A=2(AA) +(Aa)/2 /

Question 13

what does the allele frequency tell you

Answer 13

the probability of randomly drawing that allele from the population

Question 14

how do you calculate genotype frequency

Answer 14

number of individuals if a given genotype/total number if individuals