Suppose that in plants, tall plants (T) are dominant to short plants (t), and smooth seeds (S) are dominant to wrinkled seeds (s). A dihydrid plant was crossed to a short plant with wrinkled seeds. What proportion of the progeny is expected to have genotype Ttss?

Please help! I think I know it but want to confirm??

Question

Suppose that in plants, tall plants (T) are dominant to short plants (t), and smooth seeds (S) are dominant to wrinkled seeds (s). A dihydrid plant was crossed to a short plant with wrinkled seeds. What proportion of the progeny is expected to have genotype Ttss?

Please help! I think I know it but want to confirm??

abhisar · Answer

ur question is not clear?
short plant with wrinkled seeds was crossed with which plant ?

aaronq · Answer

to a dihybrid, so the cross is TtSs x ttss

since we're assuming independent assortment, you can do 2 individual punett squares
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so 0.5 are Tt and 0.5 are ss, 0.5*0.5=0.25 

so 1/4 are Ttss