If a plant has the ttss genotype, what would the genotypes of its gametes be?

The plant having TtSs genotype can produce four different types of gametes, whose genotypes are- TS, Ts, tS, ts.

The plant with genotype TtSs represents two different genes that are present in the heterozygous state ( that is Tt and Ss).

As per the Mendel's law of segregation, during the process gamete formation, the variant of a gene ( also called allele) is segregated from one other so that gamete carries only one allele for the gene.

Thus, the plant with TtSs genotype produces gametes with the genotype- TS, Ts, tS, ts.

is this for the e2020 class

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products