Question

1. in a group of bitter melon plants, some individuals have dark brown seeds and others have light brown seeds. in this group, the gene for the seed color trait has two alleles. the allele d is for dark brown seeds, and the allele d is for light brown seeds.
2. a certain bitter melon plant from this group has dark brown seeds. this plant has two alleles for dark brown seeds.
3. based on this information, click the blue words to correct any errors in the text.
4. this bitter melon plants genotype for the seed color trait is light brown seeds.

this bitter melon plants phenotype for the seed color gene is dd.
this bitter melon plant is homozygous for the seed color gene.

Explanation:

1. Genotype refers to the genetic makeup (alleles), while phenotype is the observable trait. The plant has dark brown seeds (phenotype) and two D alleles (genotype DD, homozygous dominant).
2. The first sentence incorrectly labels the phenotype as the genotype. The second sentence incorrectly labels the genotype as the phenotype. The third sentence is correct because having two identical alleles (DD) means homozygous.

Answer:

• Correct the first sentence to: This bitter melon plant's genotype for the seed color trait is DD.
• Correct the second sentence to: This bitter melon plant's phenotype for the seed color gene is dark brown seeds.
• The third sentence ("This bitter melon plant is homozygous for the seed color gene.") is correct and requires no change.