Genotype Practice Worksheet
Genotype Practice Worksheet
Directions: Use the information given to you below for each trait to answer the problems that follow.
Trait Dominant Form Recessive Form Letter to Use
Hair Color Brown Blond B or b
Eye Color Brown Blue E or e
Dimples Dimples No Dimples D or d
Widow’s Peak Widow’s Peak Not Present W or w
Freckles Freckles No Freckles F or f
Handedness Right Handed Left Handed H or h
1. What is the genotype of a female who is heterozygous for eye color? _______________________
2. What is the genotype of a female who is homozygous dominant for dimples? _______________________
3. What is the genotype of a male who is homozygous recessive for hair color? _______________________
4. What is the genotype of a male who is heterozygous for the widow’s peak? _________________
5. What is the genotype of a female who is homozygous recessive for eye color? ______________________
6. What is the genotype of a male who is heterozygous for dimples? __________________________
7. What is the genotype of a female who is homozygous dominant for handedness? _____________________
8. What is the genotype of a male who is homozygous recessive for handedness? _______________________
9. What is the genotype of a male who is heterozygous for freckles? __________________________
10. What is the genotype of a female who is homozygous dominant for hair color? _____________________
11. If a person has the genotype DD, they are considered to be? (circle one)
homozygous dominant heterozygous homozygous recessive
12. If a person has the genotype hh, they are considered to be? (circle one)
homozygous dominant heterozygous homozygous recessive
13. If a person has the genotype Ww, they are considered to be? (circle one)
homozygous dominant heterozygous homozygous recessive
14. If a person has the genotype Bb, what trait are they heterozygous for? ________________________
15. If a person has the genotype FF, what trait are they homozygous for? _______________________________
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