How are amino acids different from one another?
a. The R-group, or side chain, is different in each amino acid.
b. The central backbone of the amino acid molecule is different in each one.
c. The amino group is different in each one.
d. The carboxyl group is somewhat variable in each one.
a
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Which repair mechanism is responsible for repairing damage from UV radiation?
A. Recombinational repair B. Base excision repair C. Mismatch repair D. Nucleotide excision repair E. Nonhomologous end joining (NHEJ)
If a eukaryote cell contains a non-functional mutated form of RNA polymerase II, what result is most likely?
a. The cell will be unable to assemble ribosomes. b. The cell will synthesize non-functional tRNAs. c. The cell will be unable to transcribe most genes. d. The cell will only be impacted during mitosis.
Which system maintains the volume and composition of body fluids?
a. integumentary b. immune c. digestive d. urinary e. circulatory
A bacterial chromosome consists of a:
a. linear DNA molecule many times larger than the cell. b. circular DNA molecule many times larger than the cell. c. circular DNA molecule smaller than the cell. d. linear DNA molecule smaller than the cell. e. linear or circular DNA molecule smaller than the cell.