How does sexual reproduction leads to variation...
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One gamete from each parent fuse in forming a zygote. The genetic information in father and mother result in a combination. So there is a variation in the child from either of the parents.
The process of meiosis results in recombination and random mixing /selection of gametes increases the uniqueness of the offspring. The gametes mixing have different DNA. Their combination produces a unique new DNA. So offspring has characteristics of parents but is not exactly like either.
The process of meiosis results in recombination and random mixing /selection of gametes increases the uniqueness of the offspring. The gametes mixing have different DNA. Their combination produces a unique new DNA. So offspring has characteristics of parents but is not exactly like either.
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Explanation:
Sexual Reproduction: Sexual reproduction promotes genetic variation by producing different gene combinations. Meiosis is the process by which sex cells or gametes are created. ... The genetic recombination of genes also occurs during crossing over or the swapping of gene segments in homologous chromosomes during meiosis.
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