1. A mother with blood type A has a child with blood type O, and she claims that Mister X is the father. Mister X denies that he could possibly be the father, because he has blood type B. If you were the judge presiding over this case, which of the following arguments would you find most convincing? a. Mr. X could be the father if his blood genotype is IBIB, and the mother’s blood genotype is IAIA b. Mr. X cannot be the father because a child with blood type O cannot have a parent with blood type B c. Mr. X could be the father if his blood genotype is IBi, and the mother’s blood genotype is IAi d. Mr. X cannot be the father because a parent with blood type B cannot have a child with blood type O e. Mr. X cannot be the father because the human ABO blood types are sex-linked traits
1. A mother with blood type A has a child with blood type O, and she claims that Mister X is the father. Mister X denies that he could possibly be the father, because he has blood type B. If you were the judge presiding over this case, which of the following arguments would you find most convincing?
a. Mr. X could be the father if his blood genotype is IBIB, and the mother’s blood genotype is IAIA
b. Mr. X cannot be the father because a child with blood type O cannot have a parent with blood type B
c. Mr. X could be the father if his blood genotype is IBi, and the mother’s blood genotype is IAi
d. Mr. X cannot be the father because a parent with blood type B cannot have a child with blood type O
e. Mr. X cannot be the father because the human ABO blood types are sex-linked traits
2. A monohybrid cross between two pea plants producing yellow peas, resulting in an F1
a. one parental pea plant is homozygous dominant, and the other is homozygous recessive
b. both parental pea plants are homozygous dominant
c. one parental pea plant is homozygous dominant, and the other is heterozygous
d. both parental pea plants are heterozygous
e. one parental pea plant is homozygous recessive, and the other is heterozygous
3. What is the expected F1 phenotypic ratio resulting from a dihybrid cross between two parental pea plants that are both heterozygous for peas that are yellow and round (YyRr)?
a. 1:1:1:1
b. 1:1
c. 3:1:3:1
d. 3:1
e. 9:3:3:1
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