THINK-PAIR-SHARE Mirror scales are recessive in common carp (Cyprinus carpio), so any carp that has mirror scales has an ss genotype. A carp with wildtype scales may have an SS or Ss genotype. In a lake, 40% of carp have mirror scales. Determine... The frequency of the mirror scale allele (s) and the wildtype allele (S). The frequency of carp with an SS genotype. The frequency of carp with an Ss genotype. The frequency of carp with an ss genotype..