Answer:
a) Let "P" be the allele for purple lip color and "p" be the allele for green lip color
Genotypes:
Zit = PP
Zilla= Pp
b) Parental genotypes: PP x Pp
Punnet Square:
PP,PP, Pp, Pp
c) Offspring genotypes: 1 PP : 1 Pp
Offspring phenotypes : all purple
d) 100 % purple lips
e) 0% green lips
