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Which example would likely result in new combinations of DNA in an individual's offspring? (1 point)
UV radiation causing a mutation in a skin cell resulting in melanoma.
Homologous chromosomes failing to separate during meiosis.
Sister chromatids crossing over during mitosis in a heart cell.
A spontaneous mutation to the DNA in a lung cell during mitosis.
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Homologous chromosomes failing to separate during meiosis.
Reason: That occurs in germ cells during meiosis and produces abnormal gametes (nondisjunction) that can be passed to offspring. The other examples are somatic-cell events (skin or lung cell mutations, or mitotic crossing over in a heart cell) and would not generally be inherited.
Reason: That occurs in germ cells during meiosis and produces abnormal gametes (nondisjunction) that can be passed to offspring. The other examples are somatic-cell events (skin or lung cell mutations, or mitotic crossing over in a heart cell) and would not generally be inherited.
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