A small Dutch population settled in South Africa in the 17th century and became known as Afrikaners. By chance, a

few Dutch settlers carried the gene for Huntington’s disease. Today, Huntington’s disease occurs at a relatively high
frequency in this population. This is an example of ____.



a. the bottleneck effect
b. the founder effect
c. gene flow
d. artificial selection
e. natural selection


ANSWER: b

Biology & Microbiology

You might also like to view...

Which one of the following statements about RNA is correct?

A. RNA is a more stable molecule than DNA. B. RNA has the same 5-carbon sugars as DNA. C. RNA uses the same pyrimidine bases as DNA. D. RNA uses the same purine bases as DNA. E. All of these choices are correct.

Biology & Microbiology

_____ are forms of an element that differ in the number of neutrons that they carry

Fill in the blank(s) with correct word

Biology & Microbiology

Where is the nucleus of a neuron found?

A. Cell body B. Myelin sheath C. Axon branches D. Dendrites E. Companion cell

Biology & Microbiology

The enzyme that removes the neurotransmitter acetylcholine from synapses after it has been released is known as ________

Fill in the blank(s) with correct word

Biology & Microbiology