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Practice MCAT Question - Q83 - Answer!

How does the genetic material in prokaryotes usually differ from that in eukaryotic cells?

A.  The number of chromosomes
B.  The shape of chromosomes
C.  The material in chromosomes
D.  All of the above

The correct answer is (D). Eukaryotes usually have linear-shaped chromosomes in pairs. Their chromosomal material includes DNA, RNA, and proteins. Prokaryotes usually have single, circular chromosomes made primarily of DNA.

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