Lecture 5 (Polygenic, sex-linked, pedigrees)

Question 1

TH Morgan

Answer 1

determine which chromosome contained a specific gene

determined that Mendel’s Law of Independent Assortment is not always correct (think of linked genes)

Question 2

linked genes

Answer 2

genes that are located on the same chromosome that tend to be inherited together

Question 3

recombinant phenotypes

Answer 3

occurs when crossover happens. creates new combinations

Question 4

recombinant frequency

Answer 4

of recombinant/ total offspring x100

Question 5

recombinant frequency 40-60%

Answer 5

unlinked

Question 6

recombinant frequency < 40%

Answer 6

linked

Question 7

a linkage map

Answer 7

a genetic map of chromosome based on recombination frequencies