Rule: 7-tongue roller, 1 - non roller

1. tom's father was a purebred tongue roller

show the genetic match in the punnett square.

was a purebred tongue roller (tt) and his mother was hybrid tongue roller (10)

genotype

probability

phenotype

probability

See attached punnet square

Explanation:

Attached is the punnet square that shows the Mendelian assortment of the allele for tongue rolling between a homozygous dominant  and heterozygous parents.

Genotype  Probability

TT           50%

Tt           50%

Phenotype         Probability

Tongue Roller100%

here's your

hope it