How Many Segments of DNA from Viruses Does the Human

question 19

Multiple Choice

How many segments of DNA from viruses does the human genome contain?

• A) almost 20,000, the same number as the genes that encode proteins
• B) almost 100,000, four times more than the genes that encode proteins
• C) almost 5000, one-fourth the number of the genes that encode proteins
• D) none; the human genome cannot contain viral DNA

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