Phenotype and Genotype Result of Crossing Heterozygous Individuals for Seed Color

What are the possible genotypes and phenotypes produced by crossing two individuals heterozygous for seed color?

When two individuals heterozygous for seed color (Gg) are crossed, what genotypes and phenotypes would be observed?

Possible Genotypes and Phenotypes

The resulting genotypes from crossing two individuals heterozygous for seed color would be GG (homozygous dominant), Gg (heterozygous), and gg (homozygous recessive). The corresponding phenotypes would be Green, Green, and Yellow, respectively.

When two individuals both carrying one dominant allele (G) and one recessive allele (g) for seed color are crossed (Gg x Gg), their offspring can have different combinations of these alleles. The possible genotypes that can result from this cross are GG (homozygous dominant), Gg (heterozygous), and gg (homozygous recessive).

The dominant allele 'G' codes for green seed color, while the recessive allele 'g' codes for yellow seed color. Therefore, individuals with genotype GG or Gg will exhibit the green seed color phenotype, and only individuals with genotype gg will show the yellow seed color phenotype.

During gamete formation, the individuals will produce four possible allele combinations: GG, Gg, gG, and gg. However, Gg and gG are functionally equivalent since they represent the same genotype with one dominant and one recessive allele.

Therefore, the resulting offspring will have green seed color if they carry at least one dominant allele (G). The homozygous recessive genotype (gg) is necessary for the yellow seed color phenotype to be expressed.