In Drosophila melanogaster there is a sex-linked gene for eye color that is found only on the X

chromosome. The allele for red eye color (Xw+) is dominant over the allele for white eye color (Xw).
You examine a vial of 100 flies that are all offspring from a single genetic cross. You see only redeyed
females and white-eyed males present. The genotypes of the parents were



a. Xw+Xw+; XwY.
b. Xw+Xw; XwY.
c. XwXw; Xw+Y.
d. Xw+Xw; Xw+Y.
e. XwXw; XwY.


C

Biology & Microbiology

You might also like to view...

The ________ connects the larynx with the bronchi

Fill in the blank(s) with correct word

Biology & Microbiology

What is the major monosaccharide found in the body?

What will be an ideal response?

Biology & Microbiology

Epidemiologists can use (direct immunofluorescent/immunochromatographic/serological) assays to track infectious disease.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which of the following is/are true of cryptococcal meningitis?A) It is most often caused by Cryptococcus gattii.B) The pathogen usually enters the body via the respiratory route.C) It is usually a mild form of meningitis that is self-limiting.D) It is most often seen in patients with AIDS.E) The pathogen can be detected in csf specimens by negative staining.

What will be an ideal response?

Biology & Microbiology