You have formulated a hypothesis: “Mangoes contain more vitamin C than oranges.” To test this hypothesis you measure vitamin C levels in 20 oranges and 20 mangoes from trees that were grown in the same orchard under the same environmental conditions (temperature, rain, sunlight). Select all statements that are true […]

In the ABO blood system in humans, alleles A and B arecodominant, and both are dominant to the O allele. Give all of thepossible genotypes of a female with A-type and a male with B-typeblood. If the couple in a. had a child with O-type blood, give theconfirmed genotypes of […]

Two friends, Bert and Ernie, played on a soccer team together. Both of them sustained injuries during the same game. Bert had a small tear in the lateral meniscus (a pad of fibrocartilage) of the knee. After considering the injury, the doctor hoped that Bert would heal without surgery. Ernie […]

A man with a cleft chin marries a normal-chined woman and they have 10 children, all with cleft chins. a.) Can you be sure the man is homozygous? Explain. b.) If the 11th child has a cleft chin, will that prove that the father is homozygous? Explain. c.) Assume that […]