In sexual reproduction,the variation among offspring,and the fact that they are genetically different from their parents,is due to which of the following?

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All three processes, random alignment of homologues during meiosis I, crossing over, and random process of fertilization, contribute to genetic variability in sexual reproduction. Random alignment of homologues during meiosis I can result in different combinations of chromosomes to be separated into different cells. Crossing over can exchange genetic material between maternal and paternal chromosomes, further increasing genetic variability. Finally, the random process of fertilization combines genetic material from two different individuals, creating even more genetic variation among offspring.

In Sexual Reproduction,the Variation Among Offspring,and the Fact That They