In pea plants, tall (T) is dominant over short (t). What are the genotypes and phenotypes...

In pea plants, tall (T) is dominant over short (t). What are the genotypes and phenotypes of the offspring of a cross between a TT and a tt plant?

Genotype____________ Phenotype___________

Expert Solution

TT genotype (homozygous ) is responsible for phenotypically tall pea plant .

And T is dominant over t allele hence also Tt (heterozygous ) genotype is responsible for tall pea plant .

And only homozygous tt genotype is responsible for phenotypically short pea plant.

Here a cross occurs between homozygous TT and homozygous tt

Gamets from TT will be T and gamets from tt will be t

	T( gamets from long plant)	T (gamets from long plant)
t (gamet from short plant)	Tt (heterozygous, tall plant)	Tt (heterozygous, tall plant)
t ( gamet from short plant )	Tt (heterozygous, tall plant)	Tt (heterozygous, tall plant)

The genotypes of all the offspring are Tt (heterozygous )

And the phenotypes of all the offspring will be tall

( as T is dominant over t allele hence heterozygous Tt condition will also express tall phenotypic charecter

gladiator answered 2 years ago

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