Name: __________________________________
Keystone Quiz 7: Genetics
1. The principle of dominance states that
a. All alleles are dominant
b. All alleles are recessive
c. Some alleles are dominant, while others are recessive
d. Alleles are neither dominant nor recessive
For questions 2-4, answer using the diagram on the right
2. What type of punnett square is shown ?
a. Monohybrid
b. Dihybrid
c. Trihybrid
d. Tetrahybrid
3. Each of the offspring could be described as
a. Homozygous dominant
b. Heterozygous
c. Homozygous recessive
d. Codominant
4. What is the phenotype of the parent with the homozygous recessive genotype?
a. Round Green seed
c. Round Yellow seed
b. Wrinkled Green seed
d. Wrinkled Yellow seed
5. A man with straight hair mates with a woman with curly hair. They have a child with wavy hair. Which pattern of
inheritance is shown?
a. Simple dominance
c. Codominance
b. Incomplete dominance
d. Multiple alleles
6. Which of the following would not be a benefit of genetic engineering?
a. Colorful products
c. Potential allergies
b. Larger food
d. More resistant produce
7. Why are segregation and independent assortment important?
a. They make identical offspring
c. Makes sure each sperm and egg are diploid
b. The make sure girls only inherit mom’s traits
d. They allow genetic variation
8. The gene for SCID is located on the X-chromosome. Due to this, which of the following is not true?
a. Females are more likely to show the trait
c. Males can be carriers for the trait
b. Females can be carriers for the trait
d. Males are more likely to show the trait
9. The speckled chicken on the right results from a cross between a black and white chicken. Explain what type of
inheritance this would be, and draw a punnett square to show how this would happen.