________ is a bacterial plasmid vector.

A. Lambda
B. SV40
C. pUC19
D. T4 DNA ligase


Answer: C

Biology & Microbiology

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If the p53 gene is damaged, a cell can behave as though there are which of the following?

a. more mutations b. apoptotic mutations c. no mutations d. proto-oncogene mutations.

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Estuaries are important nurseries because of the relatively low numbers of predators in these areas

Indicate whether the statement is true or false

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__________ selection favors intermediate forms of a trait where __________ selection favors extreme forms. Fill in the blank(s) with the appropriate word(s)

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Before another action potential “spike” can occur

a. there must be a very brief restoration of the resting conditions in the membrane. b. the membrane voltage must drop to zero. c. the sodium-potassium pump must cease temporarily. d. all of the membrane gates must be closed at the same time. e. all of these must happen.

Biology & Microbiology