3333 Genetics

What is the genotype of a homozygous male with blood type B?

• IB IB

• IA IA

• IB i

• IA i

What is the genotype of a heterozygous female with blood type A?

• IA IA

• IA i

• IBIB

• IB i

• 1/4

• 1/2

• 3/4

• 1/8

• 1/4

• 1/2

• 3/4

• 1/8

What is the genotype of a male with blood type O?

• IAIB

• ii

• IAi

• IBi

In a cross between a male with blood type O and a female with blood type AB, what is the probability of having a child with blood type A?

• 0%

• 25%

• 50%

• 100%

What are the possible genotypes of the offspring from a cross between a male with blood type O and a female with blood type AB?

• IAIA and IBIB

• IAi and IBi

• ii and IAIB

• IAIB and ii

If a boy has a blood type O and his sister has blood type AB, what are the genotypes and phenotypes of their parents?

• Both parents are type O (ii)

• A and B

• AB and O

• A and O

• B and O

What are examples of polygenic traits?

• Blood type, hair texture, and ear shape

• Skin color, height, eye color, and fingerprint patterns

• Tongue rolling, dimples, and handedness

• Freckles, widow's peak, and attached earlobes