Chapter 5 - Linkage/Mapping

Question 1

violation of Mendel’s 2nd Law

Answer 1

genes linked on the same chromosome segregate together

Question 2

the greater the distance between the genes,

Answer 2

the greater the chance of crossovers

Question 3

crossovers occur at

Answer 3

prophase I of meiosis

Question 4

independent assortment always gives

Answer 4

50% recombination

Question 5

recombination frequency

Answer 5

recombinant strands per total strands progeny per meiosis

Question 6

accurate map distances

Answer 6

less than 7 mu

Question 7

why recombination frequency underestimates true map distance

Answer 7

double crossovers between two loci will restore at least some parental genotypes

Question 8

coefficient of coincidence

Answer 8

the observed number of DCOs divided by the expected number of DCOS

Question 9

interference equation

Answer 9

1 - CoC

Question 10

interference definition

Answer 10

observed double crossover frequency differs from the expected double crossover frequency

Question 11

positive interference

Answer 11

one crossover reduces the likelihood of a second simultaneous crossover