Punnett Square Genetics

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Presentation transcript:

Punnett Square Genetics Visual PPT Quiz 3 Punnett Square Genetics

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%

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%

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

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

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

(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

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%

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%

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

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