Sam asked in Arts & HumanitiesBooks & Authors · 1 decade ago

In my sister's keeper why didn't anna get leukemia if kate did?

I thought they have the same genes

7 Answers

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  • 1 decade ago
    Favorite Answer

    You could have identical twins and have one get cancer but not the other.

    But they aren't twins, or clones. They are sisters - same mother and father. The only other stronger gynetic simularity they share is that several fertilized eggs were tested for genotype match, so that they could get a good match on the first try- but they could have gotten the same level of match by just trying several times, what parents who do this in real life usually do.

    In other words, they were simply sisters.

  • Risa
    Lv 5
    1 decade ago

    The only people who can ever have the exact same genes are identical twins. The reason is simple science. Anna is a product of preimplantation genetic diagnosis which takes several sperm and egg from the parents and finds the right combination that will not carry a certain genetic trait. Anna's parents opted for this because their eldest child was not a donor match.

  • Anonymous
    1 decade ago

    They may have the same genes, but what happens to the body after the fetus develops is completely different.

  • 1 decade ago

    Leukemia and other cancers' causation is more complicated than a specific genotype resulting in uncontrolled cell growth. Other factors include climate, chemical exposure, exposure to ultraviolet and other electromagnetic radiation, nutrition and spontaneous mutation and cell growth.

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  • Anonymous
    1 decade ago

    Just because you have the same genes, doesn't mean you will get the same disease.

  • 1 decade ago

    its just like if you had a sister, she might get a cold and you wouldn't. they aren't twins, just sisters.

  • Anonymous
    1 decade ago

    it happens like that .

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