Answer :
Answer:
homozygote
Explanation:
Because tongue-rolling is recessive, the only way a person would be unable to roll his/her tongue would be if s/he were homozygous mutant.
Answer:
homozygote
Explanation:
Because tongue-rolling is recessive, the only way a person would be unable to roll his/her tongue would be if s/he were homozygous mutant.