A mutant that requires the supplementation of a particular nutrient that the wild-type strain can normally synthesize on its own is called a(n)
a. autotroph.
b. auxotroph.
c. phenotype.
d. prototroph.
Answer: B
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A phylogenetic species comprises ____
a. populations that share a recent evolutionary history b. individuals that share a recent evolutionary history c. interbreeding populations that are reproductively isolated d. individuals that share measurable traits that distinguish them e. one large gene pool subdivided into local populations
What term describes the process in which an enzyme makes a reaction run faster?
a. Induced-fit model b. Catalysis c. Active site d. Substrate e. Antioxidant
What determines the gender of a human fetus?
a. presence of an SRY gene b. presence of X and Y chromosomes c. absence of an X chromosome d. the sex chromosomes in the egg e. the presence of estrogen
A map of a chromosome that includes the positions of genes relative to visible chromosomal features, such as stained bands, is called a
A) linkage map. B) physical map. C) recombination map. D) cytogenetic map. E) banded map.