Question

an allele for brown eyes is expressed over an allele for blue eyes. which letter would be used to represent blue eyes in a genotype? options: e, e, b, b

Explanation:

In genetics, dominant alleles are typically represented by uppercase letters and recessive alleles by lowercase letters. Since brown eyes are dominant over blue eyes, blue eyes (the recessive trait) would be represented by a lowercase letter. If we assume the trait for eye - color is related to a single gene, and using a common naming convention where the first letter of the dominant trait (Brown) could be used. But more accurately, for a pair of alleles (dominant and recessive for the same trait), if we consider the general rule of dominant (uppercase) and recessive (lowercase). If we assume the gene for eye color has alleles where the dominant (brown) is \(B\) (uppercase) and the recessive (blue) is \(b\) (lowercase).

Answer:

D. b