Question

A true breeding tall purple pea plant is crossed with a true breeding short white pea...

A true breeding tall purple pea plant is crossed with a true breeding short white pea plant. Purple and tall are dominant. What is the genotype and phenotype of the F1 offspring. If two of the F1 offspring are crossed, what will be the phenotypes and genotypes of the F2 offspring? A tall purple pea plant is crossed with a short white pea plant. What will the phenotype(s) and genotype(s) of the F1 offspring be?

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Answer #1

It is a dihybrid cross. Both follow complete dominance.

Phenotype is the observable traits. Ratio is --9tall purple:tall white3:short tall 3:white and short1---(9:3:3:1)

Genotypic ratio is--

Genetic constitution of an organism is called gentype and the ratio of the genotype is called genotypic ratio.

TtPp x ttpp------this corss gives 50% tall and purple and 50% short and white.

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