A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population contain the A1 allele. If the population is in Hardy-Weinberg equilibrium, what proportion of the flies carry both A1 and A2?
a. 0.42
b. 0.7
c. 0.49
d. 0.21
e. 0.09
Answer: a. 0.42
You might also like to view...
What type of floral attraction would work best on the pollinator in the accompanying figure?
a. white flowers b. purple or blue flowers c. a strong sweet scent d. a strong carrion-like scent e. sweet nectar
Innate immunity
A) is slower than adaptive immunity in responding to pathogens. B) is nonspecific and present at birth. C) involves a memory component. D) involves T cells and B cells. E) provides increased susceptibility to disease.
The muscular tube leading from the pharynx to the stomach is the
A. larynx. B. trachea. C. esophagus. D. glottis. E. bronchus.
Stiling and Drake conducted experiments about the effects of elevated atmospheric carbon dioxide on insect herbivory. What did they find?
A. Elevated plant growth, but no change in insect herbivory. B. No change in plant growth, but elevated insect herbivory. C. Elevated plant growth, but reduced insect herbivory. D. Elevated plant growth and insect herbivory. E. No change in plant growth, but increased insect herbivory.