In pea plants, yellow seeds are dominant over green seeds. The expected genotype ratio in a cross between a plant with green seeds and a plant that is heterozygous for seed color is what? That's a really confusing question, right?
Stacey Warren - Expert brainly.com
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Oh cause one is green and then out of four and it's heterozygous.
So that's why it's Yy, sorry I had a concussion and have really been struggling with school work.
And it's actually 2:2 i am sorry. U can use a punnett square to figure out. It's Yy because it is heterozygous, since Y(yellow) is dominant so it can only be yellow.|dw:1370312593735:dw|
And heterozygous means that the genotype is different ex. Yy
Yeah, I got that. Okay.. so it'd be 2:2 because the genotypes are Yy, Yy, (both yellow) and yy, yy (both green), right?
Ahhhh great! Thanks :)
If you use a punnett square, it will make much more sense. Take one parent genotype and cross is with the other parent's genotype. You know that one offspring will get XX and two that are Xx, those three will have yellow phenotype. The fourth will be xx and will be green.The ratio is therefor 3:1 because even if the XX and Xx are different genotypes, they both result in the a yellow phenotype
Nevermind what I just wrote, I misread the question and thought that they were both heterozygous. Sorry!
Oh it's fine! The wording in the question really threw me off, that's why I got confused.