In which of the following are non-complementary nucleotides recognized, excised, and replaced with correct nucleotides?
a. mismatch repair
b. semiconservative replication
c. Okazaki fragmentation
d. nucleotide excision repair
a. mismatch repair
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If a mutation rendered the signal recognition particle receptor nonfunctional, what would be the most obvious effect on the cell?
A. Translation of most proteins would be incomplete. B. All proteins normally secreted by the cell would remain partially formed and attached to the endoplasmic reticulum. C. Proteins destined for the nucleus would remain in the cytosol. D. No proteins would arrive at their proper destinations within the cell. E. All proteins normally secreted by the cell would remain in the cytosol.
A nucleoside consists of only a five-carbon sugar and a phosphate group
Indicate whether the statement is true or false
Zero population growth is achieved
a. when a population reaches the carrying capacity of the environment. b. when emigration and immigration are balanced, and the number of births equals the number of deaths. c. anytime that births exceed deaths. d. anytime that deaths exceed births. e. when emigration and immigration are prevented.
The thin, sheetlike basal laminae are found
a. under epithelia. b. in the cytoplasm just below the plasma membrane. c. in the extracellular space surrounding all eukaryotic cells. d. in between adjacent cells connected by gap junctions.