Question

in a punnett square, what does a lowercase letter represent? a dominant allele the gender allele a recessive allele

Explanation:

In genetics, when using Punnett squares, the convention is that uppercase letters represent dominant alleles and lowercase letters represent recessive alleles. Dominant alleles show their trait even if only one copy is present, while recessive alleles only show their trait when two copies (homozygous recessive) are present. There is no standard representation of "gender allele" in the context of a simple Punnett - square notation for basic Mendelian traits (gender - related inheritance has more complex patterns like X - linked, Y - linked etc. which are not represented by a single 'gender allele' in a simple Punnett square).

Answer:

a recessive allele