Brown-eye genes are dominant over blue-eye genes. What is the best explanation for the fact that all the blue-eye alleles have not disappeared in the human population?

A) Some blue alleles are always hidden in heterozygotes.
B) The population is likely in Hardy-Weinberg equilibrium for that locus.
C) Brown-eyed people sometimes have a blue-eyed parent.
D) People with brown eyes tend to choose mates with brown eyes, and blue-eyed people tend to choose mates with blue eyes.


Answer: B

Biology & Microbiology

You might also like to view...

Which of the following genotypes is homozygous?

A) RR B) Rr C) RY D) Yy

Biology & Microbiology

The giant squids of the deep sea remain a mystery because we lack knowledge of:

a. what they feed on. b. their exact size. c. their distribution. d. their anatomy. e. the identity of their predators.

Biology & Microbiology

How long did it take in the history of life on Earth to go from the first prokaryotic cells to the first eukaryotic cells?

A. 1,000 years B. 1 million years C. 100,000 years D. Over a billion years

Biology & Microbiology

The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is called

A. catastrophism. B. temporal equilibrium. C. gradualism. D. punctuated equilibrium. E. temporal isolation.

Biology & Microbiology