Question

in peas, yellow seed color (y) is dominant to green seed color (y). which describes an organism that has nonidentical alleles for seed color?
○ yy and has green seeds
○ yy and has yellow seeds
○ yy and has yellow seeds
○ yy and has green seeds

Explanation:

• Allele Basics: Alleles are different forms of a gene. Non - identical alleles mean heterozygous (different letters in the genotype).
• Dominance: Since \(Y\) (yellow) is dominant over \(y\) (green), an organism with \(Yy\) (heterozygous, non - identical alleles) will show the dominant trait (yellow seeds).
• Genotype - Phenotype Relationship:
• \(yy\) is homozygous recessive (identical alleles) and has green seeds.
• \(YY\) is homozygous dominant (identical alleles) and has yellow seeds.
• \(Yy\) is heterozygous (non - identical alleles). As \(Y\) is dominant, the phenotype is yellow seeds.

Answer:

Yy and has yellow seeds