In a human male, how many total chromatids are present in cell number 4?
a. 2
b. 4
c. 23
d. 46
e. 92
D
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Which of the following statements is not true of the TCA cycle?
A) Oxidation occurs at three steps in the TCA cycle. B) Decarboxylation occurs at two steps in the TCA cycle. C) ATP/GTP is generated at one point by substrate-level phosphorylation. D) Acetate enters the TCA cycle and joins a four-carbon acceptor molecule to form citrate. E) FAD is an electron acceptor in the cycle.
Frameshift mutations may involve
a. substitution of nucleotides. b. substitution of codons. c. substitution of amino acids. d. insertion of one to several base pairs. e. all of these
The Hardy-Weinberg rule is
a. useful in determining the extent to which a sexually reproducing population is evolving. b. used to predict when genetic drift will occur in a sexually reproducing population. c. useful in determining the extent to which polyploidy is occurring in specific plant populations. d. used to predict when specific groups of organisms will become extinct. e. all of these.
Glucose and other nutrients are moved from the filtrate back into the blood by the process of ____________________. Fill in the blank(s) with the appropriate word(s)