Mutation rates of human genes are usually expressed as the number of
A. nucleotides altered per gene.
B. frameshift mutations per genome.
C. mutated alleles per genome.
D. mutant births per generation.
E. mutated alleles per generation.
E
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Which of the functional groups below acts most like an acid in water?
A) amino B) carbonyl C) carboxyl D) hydroxyl
Hypothetically, if electron pools existed in sufficient numbers for enzymes to use in metabolic reactions,
A) a higher diversity of cytochromes would likely be observed. B) cytochromes would be unnecessary for cells and quinones would be more important. C) Q-cycle reactions would no longer be necessary for electron transport, but the proton motive force would otherwise be unchanged. D) most metabolic pathways for both anabolism and catabolism would have to be rewritten.
Genotype refers to
A) the number of alleles of a gene that a person has. B) the combination of alleles for a particular gene. C) a person's entire genome sequence. D) the appearance of a trait.
If strain a and strain b conjugate, the most likely outcome of their offspring would be:
a. bio- met- leu- thr- thi+. b. bio+ met+ leu- thr+ thi+. c. bio+ met- leu- thr- thi+. d. bio+ met+ leu- thr- thi+. e. bio- met- leu- thr- thi-