punnett square test review

Punnett Square Test Review

Created by sfalwell. Permission for teachers to use with link to http://comelearnmore.com/

Part 1: Vocabulary

1. The form of the gene that is “weaker” and can be hidden

by another allele

a)Dominantb)Recessivec)Genotyped)Phenotype

2. The form of the gene that is “stronger” and

appears more oftena)Dominantb)Recessivec)Genotyped)Phenotype

3. BB, Bb, and bb are examples

a)Dominantb)Recessivec)Genotyped)Phenotype

4. Being tall or short are examples

a)Dominantb)Recessivec)Genotyped)Phenotype

5. The genes or instructions for a trait

a)Dominantb)Recessivec)Genotyped)Phenotype

6. Is represented by letters

a)Dominantb)Recessivec)Genotyped)Phenotype

7. The expression of a gene

a)Dominantb)Recessivec)Genotyped)Phenotype

8. Could look like the recessive trait

a)Homozygousb)Heterozygous

9. Would always look like the dominant trait

a)Homozygousb)Heterozygous

10. bb is an example

a)Homozygousb)Heterozygous

11. Bb is an example

a)Homozygousb)Heterozygous

12. BB is an example

a)Homozygousb)Heterozygous

13. BB would result in a _______ phenotype

a)Dominantb)Recessive

14. Bb would result in a _______ phenotype

a)Dominantb)Recessive

15. bb would result in a _______ phenotype

a)Dominantb)Recessive

16. BB would result in a _______ genotype

a)Homozygousb)Heterozygous

17. Bb would result in a _______ genotype

a)Homozygousb)Heterozygous

18. bb would result in a_______ genotype

a)Homozygousb)Heterozygous

Part 2: Fill In

19. Which is the correct way of filling in the punnett square?

20. Which is the correct way of filling in the punnett square?

21. Which is the correct way of filling in the punnett square?

Part 3: Set Up

How would you set up a punnett square for these parents?

B = Black fur b= white fur

22. Draw a punnett square for a Mom who is heterozygous and a Dad who is homozygous recessive.

How would you set up a punnett square for these parents?

B = Black fur b= white fur

23. Draw a punnett square for a Mom who is homozygous dominant and a Dad who is homozygous recessive.

How would you set up a punnett square for these parents?

B = Black fur b= white fur

24. Draw a punnett square for a Mom who is homozygous recessive and a Dad who is homozygous for black fur.

How would you set up a punnett square for these parents?

B = Black fur b= white fur

25. Draw a punnett square for a Mom who is heterozygous and a Dad who has white fur.

Part 4: Reading a

Punnett Square

B = Black fur b= white fur

26. What is the probability of a child with black fur?

B = Black fur b= white fur

27. What is the probability of a child with white fur?

B = Black fur b= white fur

28. What is the probability of a child with a homozygous genotype?

B = Black fur b= white fur

29. What is the probability of a child with a heterozgous genotype?

B = Black fur b= white fur

30. What is the probability of a child with a dominant phenotype?

B = Black fur b= white fur

31. What is the probability of a child with a recessive phenotype?

Part 5: Punnett Square Word Problems

B = Black fur b= white fur

32. If mom is homozygous dominant and dad is homozygous recessive, what is the probability of their child having black fur?

B = Black fur b= white fur

33. If mom is homozygous dominant and dad heterozygous, what is the probability of their child having white fur?

B = Black fur b= white fur

34. If mom and dad are both heterozygous, what is the probability of their child having white fur?

B = Black fur b= white fur

35. If mom is heterozygous and dad is homozygous recessive, what is the probability of their child having white fur?