There are ____ molecules of DNA in a
developing human sperm cell at the beginning
of prophase I.
a. 92
b. 23
c. 46
d. half as many (as compared to somatic cells)
e. twice as many (as compared to mature
sperm)
A
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The many pairs of cranial nerves are numbered as follows:
a. 1 through 10 b. 1 through 12 c. I throught XII d. I through X
To control the cell cycle:a
the activity of Cdks stays the same throughout the cell cycle. b. cyclins fluctuate during the cell cycle. c. Cdks are active only when they are released from cyclins. d. the anaphase-promoting complex stimulates DNA replication. e. M-Cdk inhibits mitosis.
Which of the following is smallest in diameter?
A) Capillary B) Veni C) Artery D) Venule E) Arteriole
Amino acids are converted to substrates of the Krebs cycle by (beta-oxidation/deamination/transamination)
What will be an ideal response?