Which example would likely result in new combinations of DNA in an individual's offspring?(1 point)

Question

Responses

UV radiation causing a mutation in a skin cell resulting in melanoma.
UV radiation causing a mutation in a skin cell resulting in melanoma.

Homologous chromosomes failing to separate during meiosis.
Homologous chromosomes failing to separate during meiosis.

Sister chromatids crossing over during mitosis in a heart cell.
Sister chromatids crossing over during mitosis in a heart cell.

A spontaneous mutation to the DNA in a lung cell during mitosis.
A spontaneous mutation to the DNA in a lung cell during mitosis.
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Answer 1

The example that would likely result in new combinations of DNA in an individual's offspring is:

Homologous chromosomes failing to separate during meiosis.

This event, known as nondisjunction, can result in gametes with an abnormal number of chromosomes, leading to genetic variation in the offspring once fertilization occurs. The other options involve mutations or cellular processes that do not contribute to genetic variation in offspring since they pertain to somatic (non-reproductive) cells or processes not related to the formation of gametes.