Persons who inherit a gene for extra fingers or toes ____ have the physical manifestation
a. may or may not
b. will always
c. cannot
d. hardly ever
e. must
A
You might also like to view...
Lipids _____
A) are insoluble in water B) are made from glycerol, fatty acids, and nitrogen C) contain less energy than proteins and carbohydrates D) are made by dehydration reactions E) contain sulfur polymers
A hypothetical population has two alleles for a gene: A and a. In a random sample of 50 individuals, 20 are homozygous for a, 20 are homozygous for A, and 10 are heterozygous. What is the frequency of A?
A) 20% B) 40% C) 50% D) 60% E) 80%
The cholera toxin causes a(n) __________ of chloride channels in cells of the intestine and the
resulting __________. a. closing; loss of blood b. closing; movement of neutrophils toward the bacterium c. opening; assembly of microtubules d. opening; gain of water e. opening; loss of water
What is evolution that occurs as a result of chance events?
A) sexual selection B) genetic drift C) gene flow D) population bottleneck