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mhopev mhopev
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11 years ago
Cells in your hair follicles produce the protein keratin, which is a primary component of hair. Cells in your liver do not produce keratin. What is the reason this specialization occurs?
        A. Different types of genes are activated in liver cells and hair follicle cells.
        B. Hair follicle cells contain different genes from liver cells.
        C. Hair follicle cells do not produce DNA, but liver cells do.
        D. Hair follicle cells contain recombinant DNA.
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wrote...
11 years ago
A. Only some parts of the body do these things. They have the ability to turn themselves "off"
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falmuhanafalmuhana
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11 years ago
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