Which of the following mechanisms removes nucleotides that are paired incorrectly during DNA replication?

A. mismatch repair
B. chromosomal breakage repair
C. telomerase activity
D. nucleotide excision repair


Ans: A. mismatch repair

Biology & Microbiology

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Meiosis is the basis for

a. cellular division. b. sexual reproduction. c. asexual reproduction. d. sexual and asexual reproduction. e. distribution of cytoplasm

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A(n) ________ increases the rate of a reaction without being permanently altered by the reaction.

A. catalyst B. catalyzer C. enzyme D. rate increaser

Biology & Microbiology

When would an atom be least likely to form chemical bonds with other atoms?

A) The number of protons equals the number of electrons. B) The number of protons equals the number of neutrons. C) There is only one electron in the valence shell. D) The valence shell is full of electrons.

Biology & Microbiology

Most archaeal mRNAs like those of eukaryotes are spliced.

Answer the following statement true (T) or false (F)

Biology & Microbiology