genes for dimples. alleles for dimples. chromosomes for dimples. genotypes for dimples.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A girl inherited the dominant trait of dimples but her sister did not because both parents had different
Possibilities:
- genes for dimples.
- alleles for dimples.
- chromosomes for dimples.
- genotypes for dimples.

alleles for dimples.