What characteristic of short tandem repeats (STRs) DNA makes it useful for DNA fingerprinting?
A) The number of repeats varies widely from person to person or animal to animal.
B) The sequence of DNA that is repeated varies significantly from individual to individual.
C) The sequence variation is acted upon differently by natural selection in different environments.
D) Every racial and ethnic group has inherited different short tandem repeats.
Answer: A
You might also like to view...
A sexually producing animal that can produce
both eggs and sperm and can switch from one sex to another are called ___ hermaphrodites.
a. simultaneous b. sequential c. parthogenic d. gastrulated e. preferential
Tropical rain forest soils are usually
A. nutrient-rich. B. nutrient-poor. C. low in organic matter. D. nutrient-rich and low in organic matter. E. nutrient-poor and low in organic matter.
________ fatty acids are liquid at room temperature, while ________ fatty acids are solid
Fill in the blank with correct word.
A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the trait). For the following questions, assume that the population fits the parameters of the Hardy-Weinburg law. Unlike most natural populations, this population is best characterized in which of the following ways?
a. There is genetic equilibrium. b. There is gene flow. c. There is genetic drift. d. Mutations occur. e. Mating is nonrandom.