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:

• For \(yy\): It has two recessive alleles (homozygous recessive). Since green (\(y\)) is recessive, it has green seeds. But it has identical (homozygous) alleles, not non - identical.
• For \(Yy\): It has two non - identical alleles (heterozygous). As yellow (\(Y\)) is dominant over green (\(y\)), the dominant allele \(Y\) determines the seed color. So, it has yellow seeds.
• For \(YY\): It has two identical (homozygous dominant) alleles.
• For \(Yy\) having green seeds: Since \(Y\) (yellow) is dominant over \(y\) (green), \(Yy\) cannot have green seeds.

Answer:

B. \(Yy\) and has yellow seeds