Enter a clue or pattern or both:
The Clue
Genotype determinants (7 letter answer)
The Answer
ALLELES
Tags
Notes
The answer ALLELES is so rare that it appears less than once every 2500 puzzles.
Definition
ALLELE as a noun:
1. (allele, allelomorph) = either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character; "some alleles are dominant over others"