crossing over and independent assortment

Question 1

reciprocal cross

Answer 1

flipping genotypes of male and female parent

Question 2

are reciprocal crosses different on autosomes?

Answer 2

no, the results are the same

Question 3

are reciprocal crosses different on sex chromosomes?

Answer 3

yes

Question 4

dihybrid cross

Answer 4

crossing two traits
- 4 combinations of gametes after meiosis

Question 5

test crosses

Answer 5

homozygous recessive parent with an unknown parent

Question 6

hemizygous genotypes

Answer 6

only one copy of the X gene in males

Question 7

when does crossing over occur?

Answer 7

prophase I of meiosis

Question 8

what does crossing over result in?

Answer 8

2 recombinant and 2 nonrecombinant chromosomes at the end of meiosis II

Question 9

what do recombinant chromosomes show?

Answer 9

nonparental combination of alleles

Question 10

what affects recombination frequency?

Answer 10

physical distance between 2 genes

Question 11

what happens when the 2 genes on the chromosomes are close together?

Answer 11

they are less likely to cross over

Question 12

what is the range for frequency of recombination?

Answer 12

0% - 50%