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7 November, 20:00

Hereditary diseases are mainly caused by

A. defective viruses.

B. weakened immunity.

C. abnormal chromosomes.

D. unhealthy lifestyle choices.

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Answers (1)
  1. 7 November, 21:07
    0
    C. Abnormal Chromosomes. A, B, and D have nothing to do with heredity.
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