Question

the offspring of a particular cross are 100 percent heterozygous for the trait of plant height. what were the most likely genotypes of the parents?
o tt tt
o tt tt
o tt tt
o tt tt

Explanation:

Step1: Analyze each option

• For \(Tt\times tt\):

Using Punnett square:

	T	t
t	Tt	tt

The offspring genotypes are \(Tt\) and \(tt\), not all heterozygous.

• For \(Tt\times Tt\):

Using Punnett square:

	T	t
t	Tt	tt

The offspring genotypes are \(TT\), \(Tt\), and \(tt\), not all heterozygous.

• For \(tt\times tt\):

Using Punnett square:

	t	t
t	tt	tt

The offspring genotype is \(tt\), all homozygous recessive.

• For \(TT\times tt\):

Using Punnett square:

	T	T
t	Tt	Tt

The offspring genotype is \(Tt\), all heterozygous.

Answer:

TT ` tt