DNA and RNA molecules are present in every cell of the body. Which option best reflects this statement?

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Multiple Choice

DNA and RNA molecules are present in every cell of the body. Which option best reflects this statement?

DNA stores genetic information and RNA carries out the instructions to make proteins, and these nucleic acids are found in essentially all cells. DNA resides mainly in the nucleus (with mitochondrial DNA in mitochondria), while RNA is transcribed from DNA in the nucleus and functions throughout the cytoplasm. Because these roles are universal to cellular life, the statement that they are present in every cell best reflects the biology. There is an exception worth noting: mature red blood cells lack a nucleus (and thus DNA) and have very little RNA, which is why this general rule has its caveats.

DNA stores genetic information and RNA carries out the instructions to make proteins, and these nucleic acids are found in essentially all cells. DNA resides mainly in the nucleus (with mitochondrial DNA in mitochondria), while RNA is transcribed from DNA in the nucleus and functions throughout the cytoplasm. Because these roles are universal to cellular life, the statement that they are present in every cell best reflects the biology. There is an exception worth noting: mature red blood cells lack a nucleus (and thus DNA) and have very little RNA, which is why this general rule has its caveats.

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