1 The role of DNA polymerases in DNA replication is to _____.? A attach free nucleotides to the new strand B link together short strands of DNA C synthesize an RNA primer to initiate DNA strand synthesis D separate the two strands of DNA   2 Cell A requires high concentrations of nicotinamide adenine dinucleotide phosphate (NADPH). Which pathways is the most active to meet the metabolic needs?   A Beta-oxidation and ketogenesis B Glycolysis and glycogenolysis C Glycolysis and pentose phosphate pathway D Glycolysis, citric acid cycle and electron transport chain   3 Absence of glucose -6 phosphatase will result in the buildup of substrate A that feeds into ___. A gluconeogenesis B pentose phosphate pathway C Glucose-Alanine cycle D Cori cycle   4 The formation of pyrimidine dimers is a result from ___. A spontaneous errors during DNA replication B exposure to ultraviolet radiation C exposure to cigarette smoke D exposure to aflatoxins

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