Prior to the S phase of the cell cycle, a cell passes through a regulatory checkpoint. If

mutations are detected in the cell, the __________ will initiate cell death.



a. tumor suppressor genes
b. oncogenes
c. DNA repair genes
d. metastatic cells


A

Biology & Microbiology

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As a result of fermentation, cells produce ____

a. ADP b. NADH c. FAD d. O2 e. NAD+

Biology & Microbiology

Hydrogen bonds are the result of attraction between:

a. the H of one water molecule and the H of another water molecule. b. the two H atoms of the same water molecule. c. the H and O of the same water molecule. d. the H of one water molecule and the O of another water molecule.

Biology & Microbiology

The accompanying illustration shows the F2 phenotypes from a monohybrid cross in snapdragons. What type of

inheritance produces such an outcome? a. complete dominance b. incomplete dominance c. multiple alleles d. continuous variation e. epistasis

Biology & Microbiology

The primary consumers in natural communities

are a. herbivores. b. carnivores. c. scavengers. d. decomposers. e. all of these

Biology & Microbiology