The G2 checkpoint prevents the cell cycle from continuing until ________.

a. DNA is completely replicated
b. replicated DNA is separated
c. organelles have been duplicated
d. DNA is completely replicated AND damage to DNA can be repaired


Ans: d. DNA is completely replicated AND damage to DNA can be repaired

Biology & Microbiology

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The ________ rate is the relationship of the number of deaths from a given disease to the total number of cases of the disease.

A. index B. prevalence C. mortality D. morbidity

Biology & Microbiology

Which process propels the food down the esophagus into the stomach?

a. glycolysis b. plasmolysis c. emulsion d. peristalsis e. segmentation

Biology & Microbiology

Many clinical microbiology laboratories and public health laboratories use techniques such as microbial staining, microbial growth, enzymatic testing, fermentation testing, and microscopic analysis to identify pathogens in samples. Which categories of classical characteristics for taxonomy are represented here? (Check all that apply.)

A. Biochemical characteristics B. Molecular characteristics C. Physiological and metabolic characteristics D. Morphological characteristics

Biology & Microbiology

Pyocyanin, a greenish-blue pigment produced by pseudomonads, acts as a virulence factor by

A) digesting lipids in tissues. B) forming a biofilm. C) breaking down reactive oxygen species. D) lysing red blood cells. E) generating reactive oxygen species.

Biology & Microbiology