Question
How are the plant height genotypes TT and Tt similar?
Both are expressed as a short phenotype
Both are examples of heterozygous genotypes
Both are expressed as a tall phenotype
Both are examples of homozygous genotypes
Both are expressed as a short phenotype
Both are examples of heterozygous genotypes
Both are expressed as a tall phenotype
Both are examples of homozygous genotypes
Answers
GPT-4o mini
The plant height genotypes TT and Tt are similar in that **both are expressed as a tall phenotype**.
In this case, TT represents a homozygous dominant genotype, while Tt represents a heterozygous genotype, but both result in the expression of the dominant trait (tallness) due to the presence of at least one dominant allele (T).
The other statements do not apply correctly:
- Both are expressed as a short phenotype: This is incorrect; both are tall.
- Both are examples of heterozygous genotypes: This is incorrect; TT is homozygous and Tt is heterozygous.
- Both are examples of homozygous genotypes: This is incorrect; only TT is homozygous.
So the correct answer is: **Both are expressed as a tall phenotype**.
In this case, TT represents a homozygous dominant genotype, while Tt represents a heterozygous genotype, but both result in the expression of the dominant trait (tallness) due to the presence of at least one dominant allele (T).
The other statements do not apply correctly:
- Both are expressed as a short phenotype: This is incorrect; both are tall.
- Both are examples of heterozygous genotypes: This is incorrect; TT is homozygous and Tt is heterozygous.
- Both are examples of homozygous genotypes: This is incorrect; only TT is homozygous.
So the correct answer is: **Both are expressed as a tall phenotype**.