Unit Test — Unit test Answers

If a person has type B blood, which statement describes the antibodies present in his or her blood?

Mary has type A blood. Her son Bill has type AB blood. Which blood type does Bill's dad have if he is homogenous for blood type?

Which type of scientific statement is defined as a hypothesis or group of hypotheses that can be accepted as true based on repeated experimentation with similar results?

Scientists have genetically engineered potato plants to produce potatoes that contain edible vaccines. Which is a disadvantage of the genetically engineered potatoes?

Which DNA fingerprinting technique examines the length variation of DNA repeat sequences in human DNA?

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. What is the probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy?

Which Punnett square represents a cross between two parents that are heterozygous for purple flowers?

A purebred plant that has yellow flowers is crossed with a purebred plant that has white flowers. All the offspring have yellow flowers. Which conclusion about yellow flowers is supported by these results?

In the F2 generation of Mendel’s crosses,

Pedigrees are used to help geneticists understand how traits are inherited between generations. The Romanovs, a Russian royal family, had a history of hemophilia, a sex-linked disorder that is determined by a recessive allele on the X chromosome.What is the best evidence to prove that Irene was heterozygous for hemophilia?

Why are scientists concerned about the use of the Bt toxin, which is used to kill insects, in genetic engineering?

Which most directly describes a benefit of using DNA technology in medicine?

Which allele combination represents a male who has an X-linked recessive disorder?

A pea plant exhibits a recessive trait. Which statement is most likely true about the plant?

Which was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II?

The use of DDT as a pesticide is an example of how new technology can have favorable and dangerous long-term outcomes. How does this relate to the use of DNA technology?

Glaucoma is a leading cause of blindness. Studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. Which best describes glaucoma?

A young boy has been found, and police are trying to locate his family. They take a DNA sample from him and begin collecting DNA samples from families who have missing children. If police use DNA samples only from the fathers, which type of DNA technology can they use to identify the boy's parent?

In a dihybrid cross for round and yellow seeds (RrYy x RrYy), what is the probability of having green and wrinkled seeds?Key: R = round r = wrinkled Y = yellow y = green

A scientist is studying fruit fly wings. Straight wings are dominant, and curly wings are recessive. Which statement correctly describes the F1 generation if a straight-winged parent is crossed with a curly-winged parent and if both parents are true breeding?