A pea plant having Axilary flower (AA) with Tallness(TT) is crossed
With a pea plant having Terminal flower (aa) and dwarfness(tt).
Write punnet square to show Dihybrid cross?
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The alleles for tallness (T) and axial flower (A) are dominant over that of dwarfism (t) and terminal flower (a) respectively. Since recessive traits are exhibited in homozygous genotypes only, the genotype of a dwarf parent with the terminal flower is "ttaa". To have both axial and terminal flowers in the progeny, the dominant parent should be heterozygous to allow the expression of a recessive allele in the next generation. This makes the genotype of tall plant with axial flower "TTAa".
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