A human gamete has 23 chromosomes. How many chromatids would be in a mature cell immediately prior to mitosis?
1.23
2.46
3.69
4.92
4
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A site of negative genetic regulation where binding by repressor blocks transcription is the
A. operon. B. repressor. C. promoter. D. operator. E. CAP.
Which of the following can impact methylation
patterns? a. drugs. b. exercise. c. stress. d. diet. e. all of these
The prevalence of a disease can be calculated as the (total number of cases in population) divided by the (total number of people in population) time (____)
Fill in the blank(s) with the appropriate word(s).
One possible reason for a "senior moment" might be
a. loss of neurotransmitter. b. demyelination of CNS neurons causing slower conduction of impulses. c. toxins building up in the brain over the years. d. slower release of neurotransmitters. e. both b and d.