Monohybrid Cross

Question 1

Monohybrid Cross involves…

Answer 1

a single trait and 1 type of alleles

Question 2

A white mouse whose parents are both white produces only brown offspring when mated with a brown mouse. The white mouse is most probably.
a. homozygous recessive
b. heterozygous
c. homozygous dominant
d. haploid

Answer 2

Homozygous recessive

Question 3

In chickens, rose comb (R) is dominant to single comb (r). A homozygous rose-combed rooster is mated with a single-combed hen. All of the chicks in the F1 generation were kept together as a group for several years. They were allowed to mate only within their own group. What is the expected phenotype of the F2 chicks?
a. 100% rose comb
b. 75% rose comb and 25% single comb
c. 100% single comb
d. 50% rose comb and 50% single comb

Answer 3

75% rose combed and 25% single combed

Question 4

In mink, brown fur color is dominant to silver-blue fur color. If a homozygous brown mink is mated with a silver-blue mink and 8 offspring are produced, how many would be expected to be silver-blue?
a. 0
b. 3
c. 6
d. 8

Answer 4

a. 0