The most important result of mitosis is the
A. production of new varieties of cells to meet changes in the environment.
B. exact duplication of the parent cell's genetic information.
C. equal division of the parent cell's genetic information between the two daughter cells.
D. equal distribution of the parent's cytoplasm between the two daughter cells.
B. exact duplication of the parent cell's genetic information.
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Which of the following activities is not associated with posttranslational processing?
A) glycosylation B) specific cleavage of polypeptides C) chaperonin activity D) addition of lipid groups E) polyadenylation
Structural isomers
A. contain the same number of atoms/elements, but in different arrangements. B. are exemplified by glucose and galactose. C. are formed by different arrangements of the -COOH groups. D. may be referred to as the -D and -L forms. E. contain the same number of atoms/elements, but in different arrangements AND are exemplified by glucose and galactose.
Which changes would be expected to cause vasoconstriction in an arteriole?
A. decreases in carbon dioxide B. increases in lactic acid C. increases in potassium ion concentration D. decreases in pH
Which answer best describes energy flow in biological systems as described in the text?
a. glucose ? G3P ? NADH ? ATP b. bacteria ? archaea ? plants ? animals c. NAD+ ? NADH ? ADP ? ATP d. G3P ? glucose ? ATP ? NAD+ e. pyruvate oxidation ? glycolysis ? fermentation ? citric acid cycle