# One parental organism has the genotype "TT", and another has the genotype "Tt". What will the genotypes of their gametes be?

Parent organism a) would produce only one type of gamete, $\text{T}$.
Parent organism b) would produce two types of gametes, $\text{T}$ and $\text{t}$.
The parental diploid genotypes, such as $\text{TT}$ and $\text{Tt}$ will be separated into haploid gametes during meiosis. So the parent with the genotype $\text{TT}$ can only pass on the $\text{T}$ allele to all of its gametes. So it would produce only one type of gamete when it comes to the $\text{TT}$ genotype, which would be $\text{T}$. The parent with the genotype $\text{Tt}$ has two different alleles, and half of its gametes will have the $\text{T}$ allele, and half will have the $\text{t}$ allele. So in regard to the $\text{Tt}$ genotype, the parent organism will produce two different types of gametes, $\text{T}$ and $\text{t}$.