In F2 generation of a hybridization for a given trait conditioned by a pair of alleles T and t, according to Mendel's first law what are the genotypes of each phenotypical form? And how many respectively are the genotypical and phenotypical forms?
In the mentioned hybridization the genotypical forms in the F2 will be TT, tt and Tt. so there will be three different genotypical forms and two different phenotypical forms (considering T dominant over t).