quiz 11

Question 1

mendel concluded that traits are inherited in discrete units, T or F

Answer 1

true

Question 2

how did mendel account for the observation that traits had disappeared in F1 then reappeared in F2?

Answer 2

traits can be dominant or recessive, and recessive is hidden by dominant in F1

Question 3

F1 generation

Answer 3

if there is dominant allele, dominant phenotype always shows

Question 4

F2 generation

Answer 4

3:1, dominant:recessive

Question 5

Pp, and Yy, show

Answer 5

PY, Py, pY, py

Question 6

what obeyed independent assortment in mendel’s expirement?

Answer 6

all genes controlling traits behaved as if they were on different chromosomes

Question 7

law of independent assortment in meiosis I

Answer 7

alignment of pairs of homologous chromosomes along middle of cell

Question 8

most dominant phenotype in natural populations

Answer 8

wild-type phenotype

Question 9

relationship between recombination frequency and distance between genes on chromosomes

Answer 9

closer together=lower recombination frequency

Question 10

pairs of homologous chromosomes don’t separate normally during meiosis

Answer 10

nondisjunction