Heredity - Test Test Answers

What is the probability of the offspring having hemophilia for the cross that is shown in the Punnett square?

Which traits should the student put in section I (Inherited)?

Which of Thomas Hunt Morgan's hypotheses was valid based on these results?

In the pedigree that is shown, which represents Irene's allele combination?

What is the best evidence to prove that Irene was heterozygous for hemophilia?

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?

In peas, yellow seed color (Y) is dominant to green seed color (y). A homozygous green seed pea plant is crossed with a heterozygous yellow seed pea plant. What is the predicted phenotypic ratio of the offspring based on seed color?

In the cap f sub 2 generation of Mendel’s crosses,

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 times RrYy ?

Gregor Mendel used pea plants that were heterozygous for each of two traits—seed color and seed shape—to generate a dihybrid cross. The phenotypic ratio of the resulting offspring was nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds. From these results, what could Mendel conclude?

A scientist is studying fruit fly wings. Straight wings are dominant, and curly wings are recessive. Which statement correctly describes the cap f sub 1 generation if a straight-winged parent is crossed with a curly-winged parent and if both parents are true breeding?

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

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

Paolo hypothesizes that thick leg muscles are an inherited trait in dogs. He collects data about several dogs. The data show that dogs that live outdoors have thicker leg muscles than dogs that live indoors. What should Paolo conclude?

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?

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

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

Which trait is determined by both genetics and the environment?

In peas, yellow seed color (Y) is dominant to green seed color (y). Which describes an organism that has nonidentical alleles for seed color?

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

Which is an external environmental factor that affects heredity?

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?

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 of Mendel’s generations was allowed to self-pollinate?

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