Question

    Which statement about the Human Genome Project is

    incorrect?
    A It helped identify approximately 30,000 genes. Correct Answer Incorrect Answer
    B It discovered that less than 2% of the genome codes for proteins. Correct Answer Incorrect Answer
    C It estimated the total DNA content to be about 3 billion base pairs. Correct Answer Incorrect Answer
    D All human genes have a known function. Correct Answer Incorrect Answer

    Solution

    While the HGP identified nearly 20,000–25,000 protein-coding genes, the function of many genes remains unknown. A significant portion of the genome contains non-coding DNA, whose role is still being studied. 

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