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Anonymous asked in Science & MathematicsBiology · 2 months ago

Do family members have the same DNA?

7 Answers

  • 2 months ago

    All living organisms have the same DNA. There are not different kinds of DNA. It consists of four nitrogenous (nitrogen containing) organic bases (adenine, cytosine, guanine and thymine) attached to a pentose (five-carbon sugar) called deoxyribose. The base and sugar form a molecule called a nucleoside. The nucleoside has a phsophate group attached to it making it a nucleotide.

    These nucleotides join together in long chains called a polynucleotide. Two of these form around each other to form the famous double helix. That is DNA and is the same in all living things.

    If you wanted to ask something different that is what you should do. You should not expect people generous enough to answer your question to second guess what you really want to know.

  • Robbie
    Lv 5
    2 months ago

    No, unless they are identical twins. 

  • Anonymous
    2 months ago

    Nope. Biological family members will have similar DNA but not exactly the same. You get half of the DNA from your biological mother and the other half from your biological father. Certain genes will turn on or off resulting in different genetic or physical attributes like the color of your hair or eyes. 

  • 2 months ago

    DNA transfer goes through meiosis. The hybrid or recombination will look different in you than it does in your family. While women do inherit 50% of their DNA from each parent, men inherit about 51% from their mother and only 49% from their father.

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  • 2 months ago

    Not exactly. You get 1/2 of your DNA from your father ... a mostly random half. And 1/2 from your mother, again a random half.

    So on average, you have 1/2 the DNA as your brother or sister.

    On the other hand, over 99% of your DNA is the same as with any random person . So only that last 1% is what makes you different from everybody else.

  • 2 months ago

    Family members (related by blood, not marriage) will have similar DNA, but not exactly the same.

  • 2 months ago

    DNA stands for deoxyribonucleic acid, sometimes called "the molecule of life," as almost all organisms have their genetic material codified as DNA.

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