14.3

the phenotype of the heterozygote differs from the phenotypes of both homozygotes

A) Incomplete dominance

the ABO blood group system

B) Multiple alleles

Huntington's disease is caused by a dominant allele. If one of your parents has the disease, what is the probability that you, too, will have the disease?

C) 1/2

A woman has six sons. The chance that her next child will be a daughter is

C) 1/2.

Which of the following is a possible phenotype for the father?

C) B positive

cystic fibrosis affects the lungs, the pancreas, the digestive system, and other organs, resulting in symptoms ranging from breathing difficulties to recurrent infections

C) Pleiotropy

the ability of a single gene to have multiple phenotypic effects

C) Pleiotropy

What is the genotype of individual B-5?

C) ww

Two blue budgies were crossed. Over the years, they produced 22 offspring, 5 of which were white. What are the most likely genotypes for the two blue budgies?

C) yyBb and yyBb

A blue budgie is crossed with a white budgie. Which of the following results is not possible?

D) Green and yellow offspring

Which of the following is a possible genotype for the mother?

D) IAi

Which of the following is the probable genotype for the mother?

D) IAiRr

Which of the following is a possible genotype for the son?

D) IBi

If doubly heterozygous SsNn cactuses were allowed to self-pollinate, the F2 would segregate in which of the following ratios?

E) 9 sharp-spined : 3 dull-spined : 4 spineless

Which of the following is an example of polygenic inheritance?

E) Skin pigmentation in humans

Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by

a. environmental factors such as soil pH.

If their first two children have normal pigmentation, what is the probability that their third child will be an albino?

b. 1/4

What is the probability that their first child will be an albino?

b. 1/4

Three babies were mixed up in a hospital. After consideration of the data below, which of the following represent the correct baby and parent combinations?

c. I-2, II-3, III-1