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Can i have a simple answer to this question please :)?

How does sexual reproduction introduce genetic variation into offspring?

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  • Zirp
    Lv 7
    1 year ago

    Asexual reproduction usually means children have the exact same genetics as their parent.

    Sexual reproduction means they have HALF the genetics of their father and half of those of their mother.

    If we're talking about a species with more than one pair of chromosomes, siblings will not even get the same chromosome from the same parent

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  • Anonymous
    1 year ago

    Sexual reproduction combines the genes from 2 different individuals, and at the same time meiosis creates gametes (sperms, pollen, ova and eggs) that are highly variable due to independent assortment and crossing over so that thousands, even millions of different combinations of genes are possible even if they have the same parents. In the process, genetic variation is increased.

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  • MARK
    Lv 7
    1 year ago

    Simple Answer (I hope it is):

    Both parents are genetically different from each other.

    Their offspring receive half of their genetic information from each parent.

    The genetic information they get from each parent is random. This is because although you will get, e.g. one copy of chromosome 1 from your dad its random which copy of your dad's 2 copies of chromosome 1 you get. Also, during the formation of sex cells pairs of the same chromosomes line up with each other and exchange parts. So your copy, using the same example, of chromosome 1 from your dad’s sperm may be different from all copies of his chromosome 1 is his body cells.

    Because of this genetic variety you obtain you are quite probably genetically unique. Thus you have variation. You will be more closely related genetically to your siblings than me, but you will still be different form them.

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  • 1 year ago

    it requires that each parent has its own unique genetic distribution, so there is a possibility of one, or the other, in a genetic makeup.

    This means that there would not be any "variation" if you mated a male and female clonal equivalent (although how we would have that is an interesting question). So, ultimately, somewhat as with the chicken and egg dilemma, you have to, at some point, have genetic variation arise of its own. Once it exists, then it is just random draws of colored balls from a bag. The colors that you get can vary, just randomly. Half from mom, half, from dad.

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  • Cowboy
    Lv 6
    1 year ago

    genetic recombination.

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  • Anonymous
    1 year ago

    Take two kinds of dogs and breed them, you get a third kind of dog.

    That’s speciation.

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  • 1 year ago

    Only the most healthy and the strogest individuals can have the descendants. The others are excluded from sexual reproduction (by different methods: either they are to weak and hungry that they can't have sex, or they must fight with the leader of harem, or they sperm is of low quality because of hunger and poor health etc.).

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