1. Punnett Practice
A cross between 2 heterozygous plants yields 1252 offspring. How many are dominant and how many are recessive?

2. Answer
313 recessive
939 dominant

3. Punnett Practice #2
A cross between a homozygous recessive parent and a heterozygous parent yields 350 dominant offspring. How many recessive would you expect? What is the total number of offspring?

4. Answer
350 recessive
700 total

5. Punnett Practice #3
Two unknown parents cross and produce 36 offspring. 9 of them are homozygous dominant, 18 of them are heterozygous dominant, 9 of them are homozygous recessive. What is the genotype of the parents?

6. Both parents are heterozygous
Answer
Both parents are heterozygous

7. Punnett Practice #4
If a pea plant that is heterozygous for 2 traits (tall and purple) is crossed with a plant that is homozygous recessive (short and white), what portion of the 9,822 peas that are produced would yield plants that are tall and white?

8. Tall and white is T_pp That’s 1/4 of 9822 Which is 2,455.5
Answer
Tall and white is T_pp
That’s 1/4 of 9822
Which is 2,455.5
or about 2456

9. Punnett Practice #5
If a pea plant that is heterozygous for 2 traits (Tall and purple) is self pollinated, what portion of the 9822 offspring would be tall and white?

10. Answer Tall and white is T_pp. That’s 3/16 of 9822 Which is 1,841.6
or about 1842.