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Biology 56 Online
rose12345:

One plant with genotype YySs is crossed with another plant with the same genotype. Use the Punnett square below to find all the possible outcomes of this cross. Hint: First put all the possible gametes from each parent in each space of the top and side. (1 point)

rose12345:

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rose12345:

@astrid1

adrianluvvsyouu2:

I got you, give me a second

rose12345:

@adrianluvvsyouu2 wrote:
I got you, give me a second
thank you

adrianluvvsyouu2:

This is what is called a dihybrid cross, YySs, since the parents are heterozygous for both Y and S genes, we will have four combinations of gametes. These are: YS, Ys, yS, ys Using this information, we can create a 4x4 punnett square using these genotypes crossed with each other

adrianluvvsyouu2:

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adrianluvvsyouu2:

Let me know if you have any questions or that doesn't make sense

rose12345:

Out of the 16 possible outcomes, how many have yellow leaves?

adrianluvvsyouu2:

Is yellow the dominant Y allele or recessive? If dominant, then just count the dominant Y's (Yy or YY) in your genotypes. If recessive, then you need to look at which genotypes contain yy.

rose12345:

@adrianluvvsyouu2 wrote:
Is yellow the dominant Y allele or recessive? If dominant, then just count the dominant Y's (Yy or YY) in your genotypes. If recessive, then you need to look at which genotypes contain yy.
oki thank you

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