In humans, how many of the chromosomes are autosomes?

A. 23 pairs
B. 1 pair
C. 22 pairs
D. 22
E. 46


Answer: C

Biology & Microbiology

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Which one of the following describes a tRNA molecule that specifically recognizes the codon for the amino acid histidine, but is covalently bound (charged with) to the amino acid serine?

A. histinyl-tRNASer B. histinyl-tRNAHis C. seryl-tRNASer D. seryl-tRNAHis

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During, or shortly after a meal, most cells use which of the following as a source of energy?

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The E. coli enzyme responsible for creating unsaturated bonds from saturated bonds in the cell membrane fatty acids at a lower environmental temperature is ________

Fill in the blank with correct word.

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