Question

genetic research quick check
the trait for blue eyes in humans is caused by a recessive allele. if this gene is named e, what is the genotype of a blue - eyed person? (1 point)
ee
e
ee
ee

Explanation:

• Recessive traits are only expressed when an individual has two copies of the recessive allele.
• Here, the recessive allele is \(e\). So, for the blue - eye trait (recessive) to be expressed, the genotype must be \(ee\).
• \(Ee\) is a heterozygous genotype (dominant allele \(E\) masks the recessive \(e\), so blue - eye trait not expressed).
• \(E\) is not a genotype (genotype has two alleles for a diploid organism).
• \(EE\) has two dominant alleles, so recessive blue - eye trait not expressed.

Answer:

C. \(ee\)