A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. If he marries a woman who is also heterozygous for freckles, ________ of their children are predicted to be freckled. Also, of all their children, ________ are predicted to be heterozygous.

A. 100%; 100%
B. 75%;50%
C. 75%; 25%
D. 100%; 75%
E. 50%; 50%


Answer: B

Biology & Microbiology

You might also like to view...

Pepsinogen catalyzes the hydrolysis of proteins to short polypeptides. Indicate whether the statement is true or false

Biology & Microbiology

Which one of the following statements is true of the 32 allele in the CCR5 gene? (Choose all that apply)

A. It codes for a mutant protein that is completely inactive. B. It leads to a deletion which maintains the reading frame. C. It provides some protection against HIV progression to AIDS in both its heterozygous and homozygous forms. D. It is an example of a beneficial mutation. E. It affects the attachment of HIV to an animal cell by altering one of the viral proteins.

Biology & Microbiology

A structure used in rapid escape or pursuit is

indicated by letter a. A. b. B. c. C. d. D. e. E.

Biology & Microbiology

Which parts of a flower are most likely to have distinctive colours, patterning, and shapes for attracting pollinators?

a. the petals b. the receptacles c. the sepals d. the stamens

Biology & Microbiology