Assertion: mutation's gene | /r/HasProperty | allele
Facets:
Source sentences:
text: An example is the gene for blossom color in many species of flower — a single gene controls the color of the petals, but there may be several different versions (or alleles) of the gene.
text: Genes of the same kind, like those for straight and curly hair or those for yellow and green seeds, are called alleles.