White fruit color in summer squash is influenced by a dominant allele W, whereas colored fruit must be ww. In the presence of ww, a dominant gene G results in yellow fruit, and homozygous gg results in green fruit. The F2 phenotypic ratios resulting from a cross of a true-breeding plant with white fruit (genotype WW GG) with a plant with green fruit will result in which phenotypic ratios?

A. 8/16 white, 4/16 yellow, 4/16 green
B. 12/16 white, 3/16 yellow, 1/16 green
C. 4/16 white, 8/16 yellow, 4/16 green
D. 12/16 white, 2/16 yellow, 2/16 green
E. 8/16 white, 8/16 green


Answer: B

Biology & Microbiology

You might also like to view...

Self-reactive T cells are eliminated during the development of tolerance in the immune system

Indicate whether the statement is true or false.

Biology & Microbiology

The troph of the motile T. vaginalis organism measures 7 to 23 m long and 5 to 15 m wide. The recommended treatment of choice for this urogenital infection is:

a. tetracycline. b. metronidazole. c. penicillin. d. ketoconazole.

Biology & Microbiology

What do you know about the structure of atoms? How does it relate to the question?

What will be an ideal response?

Biology & Microbiology

Reactions that remove the equivalent of a water molecule when subunits are joined to make a larger

molecule are called ____ reactions.

a. equilibrium b. hydration c. hydrolysis d. redox e. dehydration synthesis

Biology & Microbiology