10.3 speciation

Question 1

gene pool

Answer 1

all the genes and their different alleles present in an interbreeding population

Question 2

allele frequency

Answer 2

the proportion of a particular allele in a population

Question 3

genetic drift

Answer 3

changes in composition of gene pool

Question 4

what causes changes in allele frequency

Answer 4

mutation, meiosis, genetic drift, random fertilisation, natural selection

Question 5

reproductive isolation

Answer 5

failure of two individuals to mate and produce fertile offspring, resulting in elimination or reduction in gene flow within a population

Question 6

temporal isolation

Answer 6

any shift in timing of a behaviour that reduces/ eliminates gene flow

Question 7

behavioural isolation

Answer 7

any behaviour that reduces/ eliminates gene flow

Question 8

geographic isolation

Answer 8

physical barrier between two populations that reduces/ eliminates gene flow