1. Punnett Square Genetics
Visual PPT Quiz 3
Punnett Square Genetics

2. Question #1:
If two parents are heterozygous for a genetically inherited dominant trait, what is the probability that they will have a child together who has this trait in his or her phenotype?
A. 25%
B. 50%
C. 75%
D. 100%

3. Question #2:
If two parents are homozygous for a genetically inherited recessive trait, what is the probability that they will have a child who does not have this trait in his or her phenotype?
A. 0%
B. 25%
C. 50%
D. 100%

4. A. polygenic inheritance B. multiple alleles C. Multiple dominance
Question #3: A cross of a black chicken (BB) with a white chicken (WW) produce all speckled offspring (BW). This type of inheritance is known as ..
A. polygenic inheritance
B. multiple alleles
C. Multiple dominance
D. Incomplete dominance

5. Question #4:According to the dihybrid cross below, what proportion of peas would be green and smooth?
A. 9 / 16
B. 1 / 4
C. 3 / 8
D. 1 / 16

6. Question #5:What is the probability that a hamster will have black, fine hair?
D. 8/16 ( 1 / 2)

7. (a) AB (b) A or B (c) A or B or AB (d) A or B or AB or O
Question #6: A man has blood type A. His wife has blood type B. Their children can have blood type:
(a) AB (b) A or B (c) A or B or AB (d) A or B or AB or O

8. Question #7:
Tracey has three brothers. One of Tracey's brothers has sickle-cell anemia, a disease caused by a recessive allele. She, her parents, and the other children do not have it. If Tracey's parents have another child, what is the chance that the child will have sickle-cell anemia?
A. 0%
B. 25%
C. 50%
D. 75%

9. Question #8:
In pepper plants, the allele for hot flavor (H) is dominant to the allele for mild flavor (h).  A farmer crosses a homozygous dominant plant with a recessive (mild) plant. What percentage of the offspring from this cross will have hot flavor?
A. 25%
B. 50%
c. 75%
d. 100%

10. Question #9: What is the phenotype ratio for the offspring in this Punnett Square?
A)9 round yellow; 3 round green: 3 wrinkled yellow: 9 wrinkled green
B)9 round yellow; 3 round green: 3 wrinkled yellow: 1 wrinkled green
C)3 round yellow; 9 round green: 1 wrinkled yellow: 3 wrinkled green
D)3 round yellow; 3 round green: 3 wrinkled yellow: 3 wrinkled green

11. Question #10: How should the top row of the Figure read?
A)mMxX, mMxx, mmxX, mmxx
B)MMxX, MMxx, MmxX, Mmxx
C)mMXX, mMXx, mmXX, mmXx
D)MMXX, MMXx, MmXX, MmXx