Pure breeding - Organism's gentoype is homozygous.
What exactly does this mean?
I know homozygous is RR or AA etc or rr or aa.
So by pure breeding, does it mean that that particular RR or AA or rr or aa is definitely passed down onto the next offspring? since they are both dominant?
What exactly does this mean?
I know homozygous is RR or AA etc or rr or aa.
So by pure breeding, does it mean that that particular RR or AA or rr or aa is definitely passed down onto the next offspring? since they are both dominant?
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The dominant part has nothing to do with pure breeding or homozygous.
Other than that you are right.
O- or "Oh negative" blood for example is doubly recessive because O blood is recessive and the negative part is also recessive. Therefore someone like me is homozygous for O blood and homozygous for the negative part.
Other than that you are right.
O- or "Oh negative" blood for example is doubly recessive because O blood is recessive and the negative part is also recessive. Therefore someone like me is homozygous for O blood and homozygous for the negative part.
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homozygoes means that the pair of allele are of same type. it does not mean it is dominant .