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50.   Which of the following is an indirect method for estimating the number of microbes in a sample?

17.  Which of the following metabolic pathways is found only in prokaryotes?

69.  During elongation, a charged tRNA first enters the ribosomal ______ site and then moves into the __________ site.

2.  Reactions involving ligases are typically _____________ reactions.

82.  A polypeptide in a wild type microbe contains the sequence Leu-Pro-Tyr-Ser-Pro.  A phenotypic variant of the species has the peptide sequence Leu-Pro-Cys-Tyr-Ser-Pro.  This is an example of a(n) __________________ mutation.

28.  An aquatic microbe that can grow only near the surface of the water is probably which of the following?

66.  Which of the following is/are involved in translation?

74.  RNA polymerase is primarily responsible for _________________.

46.  A(n) _______________ is a sample of a microorganism introduced into a growth medium.

62.  The events of _______________ are initiated at sequences called origins.