Question

Suppose that in humans the ability to roll the tongue (R) is dominant to being unable to roll it (r). Having freckles (F) is dominant to having no freckles (f). A freckled tongue-roller could have which genotypess?

A. RRFF
B. RrFf
C. rrFF
D. RRFF and RrFf only
E. all of the answer options are correct

Answer 1

RRFF and RrFf

Step-by-step explanation:

the R and F Will always dominate if present

so rrFF is freckled non tongue roller