Tongue-rollers are dominant, and are represented with a capital r. non-
rollers are recessive, and are represented with a lowercase r.
if a person received the allele for the ability to roll her tongue from her
mother, and the lack of ability to roll her tongue from her father, what would
be her genotype and phenotype?
oa) rr; non-roller
ob) rr; non-roller
c) rr; tongue-roller
od) rr; tongue-roller
!