1. Genetics and Punnett squares

2. Activity #1
Cross a purebred short pea plant with a hybrid tall pea plant (tt x Tt). What will the phenotype and genotype of the offspring be?

3. Activity #2
Cross a purebred tall pea plant with a hybrid tall pea plant (TT x Tt). What will the phenotype be and what %age of offspring will carry the recessive short gene?

4. Activity #3
Cross a hybrid tall pea plant with another hybrid tall pea plant (Tt x Tt). What will the phenotype and genotype be for the offspring?

5. Activity #4
Cross a purebred black guinea pig with a hybrid black guinea pig (BB x Bb).
What % will be purebred black?
What % will be hybrid black?
What % will be white (bb)?

6. Activity #5
Cross a purebred tall wheat plant with a purebred short wheat plant (TT x tt). What is the genotype and phenotype of the offspring?

7. Activity #6
Fur traits in rabbits are as follows: Short hair (S) is dominant over Long hair (s) and Curley hair (C) is dominant over Straight hair (c). Cross a purebred Short and Curley haired rabbit with a purebred Long and Straight haired rabbit.
What is the phenotype and genotype of the offspring?
%ages?

8. Activity #7
Now let’s cross a Short hair hybrid – Curley hair purebred (SsCC) with a Short and Curley hair hybrid (SsCc).
What are the genotype and phenotype?
What %ages of each?

9. Activity #8
Working alone, cross a Long and Straight hair purebred rabbit (sscc) with a Short and Curley haired hybrid rabbit (SsCc).

10. Activity #9
Working alone, draw a Punnett square for a dihybrid cross (5 columns, 5 rows) on the bottom of the page. Cross a Short and Curley haired hybrid rabbit (SsCc) with a Short and Curley haired hybrid rabbit (SsCc).
Find the different genotypes and the ratio of like phenotypes, whether homozygous or heterozygous.