What is the advantage of the proofreading function of DNA polymerase?
A. All DNA mutations can be detected and
repaired during DNA replication.
B. DNA polymerase is always present in the
nucleus and can repair all mutations when
they occur.
C. DNA polymerase can be recruited to
recently mutated sites to repair mutations.
D. DNA polymerase can repair most
mutations as they occur during DNA
replication.
D
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Malaria is caused by Plasmodium falciparum, a nonmotile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. Malaria is transmitted by the bite of a
A. tsetse fly. B. sand fly. C. kissing bug. D. mosquito. E. house fly.
Insulin and glucagon work together to maintain optimum levels of ____ in the blood
a. glycogen b. glucose c. alpha cells d. thyroxine e. digestive enzymes
A snake that has evolved to look similar to a branch will probably be able to avoid
A. predation. B. competition. C. parasitism. D. mutualism. E. the sun's rays.
As they begin to develop, in which direction do the palatine shelves grow?
A. Lateromedially B. Mediolaterally C. Obliquely and inferiorly D. Obliquely and superiorly E. Superiorly