Imagine in lemmings, that gray fur color (G) is dominant over white (g). There is another gene, called color, and individuals must have at least one color (C) allele for gray color to be expressed. A lemming that is heterozygous at both loci is crossed with a white lemming that is heterozygous for gray fur color. Which of the following is correct regarding their offspring?

A. 1/4 will be gray; 3/4 will be white
B. 3/8 will be gray; 5/8 will be white
C. all will be white
D. they will have a ratio of 9 gray:7 white
E. all will be gray


Answer: B

Biology & Microbiology

You might also like to view...

The expression of genetic traits is referred to as the organism's ________.

A. proteome B. proteotype C. genotype D. genome E. phenotype

Biology & Microbiology

Cosmid cloning vectors accomodate much larger fragments of DNA than bacterial artificial

chromosomes. __________________ Indicate whether the statement is true or false.

Biology & Microbiology

Provide a simple definition of a carcinogen

What will be an ideal response?

Biology & Microbiology

The movement of auxin downward from its site of production is referred to as:

a. gravitropism. b. apical dominance. c. nonpolar transport. d. polar transport. e. turgor movement.

Biology & Microbiology