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9.1 Population genetics  (Page 8/25)

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8 / 25  When closely related individuals mate with each other, or inbreed, the offspring are often not as fit as the offspring of two unrelated individuals. Why?
A  Close relatives are genetically incompatible.
B  The DNA of close relatives reacts negatively in the offspring.
C  Inbreeding can bring together rare, deleterious mutations that lead to harmful phenotypes.
D  Inbreeding causes normally silent alleles to be expressed.
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Practice MCQ 5 FlashCards 3 Key Terms 13

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Source:  OpenStax, 101-nya-05 - general biology i. OpenStax CNX. Jul 22, 2015 Download for free at http://legacy.cnx.org/content/col11849/1.2
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