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
You might also like to view...
The ________ connects the larynx with the bronchi
Fill in the blank(s) with correct word
What is the major monosaccharide found in the body?
What will be an ideal response?
Epidemiologists can use (direct immunofluorescent/immunochromatographic/serological) assays to track infectious disease.
Fill in the blank(s) with the appropriate word(s).
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?