What does TT mean to a geneticist?

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4 points
two dominant alleles
two recessive alleles
at least one dominant allele
one dominant and one recessive allele

In genetic terms, TT typically represents the genotype when an individual possesses two dominant alleles for a specific trait. This implies that the trait will be expressed in the individual's phenotype.

On the other hand, when an individual has two recessive alleles for a specific trait, it is usually denoted as tt. This means that the individual will show the recessive trait in their phenotype.

If an individual has at least one dominant allele (Tt), they will exhibit the dominant trait in their phenotype. However, they also carry a recessive allele, which might be passed on to their offspring.

Lastly, when an individual has one dominant allele and one recessive allele (Tt), they will still display the dominant trait in their phenotype. However, they have the potential to pass on either the dominant or recessive allele to their offspring, depending on the combination received from the other parent.