If the gene for tall (T) plants is dominant over the gene for short (t) plants , what would be the result of crossing two Tt plants?

1- If the gene for tall (T) plants is dominant over the gene for short (t) plants , what would be the result of crossing two Tt plants? 

2-After crossing Ss Yy with SsYy individual, what fraction of the offspring are predicted to have genotype that is heterozygous for both characteristics? 

 

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