When a tall green pea plant (TtGg) is crossed with a short yellow pea plant (ttgg), the resulting offspring will exhibit a phenotypic and genotypic combination of the parental traits.
The tallness is dominant over shortness, and green color dominates yellow. Therefore, all the F1 (first generation) offspring will be tall and green, carrying the heterozygous genotype (TtGg). This is due to the presence of one dominant allele for height (T) and one dominant allele for color (G).
The recessive alleles for shortness (t) and yellow color (g) are masked in the F1 generation. However, if these F1 individuals are allowed to self-pollinate or are crossed with another heterozygous plant, the subsequent generations may show a variety of phenotypic ratios, revealing the underlying genetic diversity within the hybrid pea plants.
A tall green pea plant (TtGg) is crossed with a Short yellow pea plant (ttgg). What happens?