Grade 11 biology (ILC courses) Lesson 6 key questions. Help Please!

Hi, this is an (ILC) Independent Learning Centre questions!!! I need help please!! its an online class!!

19.   Consider a cross between a pea plant that is heterozygous for round seeds and a pea plant that has wrinkled seeds. The allele for round seeds (R) is dominant over that for wrinkled seeds (r). Using a Punnett square, determine the genotypes of the offspring.

20.   In guinea pigs, the black coat (B) is dominant over the white coat (b), and straight hair (H) is dominant over curly hair (h). Using a Punnett square, complete the cross between a heterozygous black, curly-haired individual and a homozygous straight-haired, white individual. State the parent genotypes, gametes, and the F1 phenotypes and genotypes.