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Old 06-14-2011
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Zygote The difference between heterozygote and homozygote

I find this really confusing

What's the difference in medical genetics between
heterozygote
homozygote

Read Kaplan really confused
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Old 06-14-2011
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Hetero = 2 different

homo = 2 same
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Old 06-14-2011
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Heterozygote is a person that have two different forms of a particular gene each is inherited from one parent.

Homozygote is a person that have two same copies of a particular gene each is inherited from one parent.

Remember, we have 2 copies of 23 chromosomes (total 46) 23 from father and 23 from mother.

For example, if you get the bad CF gene from your mom and dad then you will be a homozygote (homozygous for the CF mutation) but if you get the bad one from your mom and normal one from your dad then you will be heterozygote.
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Old 06-14-2011
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heterozygote Aa
homozygote AA or aa
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