Chromosomal And Human Inheritance
1. An AABb individual is mated with another AABb individual. The possible number of genetically different kinds of offspring is _____.
2. The most common phenotype in a natural population is referred to as the _____.
a. Mutant phenotype
b. Wild type
c. Liked gene
3. The most common lethal genetic disease in the United States is _____.
b. Huntington’s disease
c. Sickle-cell disease
e. Cystic fibrosis
4. An important technique that helps provide insight into interesting genetic questions at the molecular level, such as reasons for hairless dogs, is called _____.
b. DNA sequencing
c. Genetic testing
d. Pedigree development
5. A red bull is crossed with a white cow and all of the offspring are roan, a shade between red and white. This is an example of genes that are _____.
c. Incompletely dominant
e. Completely dominant
6. Flower color in snapdragons is an example of incomplete dominance. If a red-flowered plant is crossed with a white-flowered plant, the F1 generation has pink flowers. If a pink-flowered plant is crossed with a pink-flowered plant, the progeny plants will be __________.
a. 50% pink and 50% red
b. 25% red, 50% pink, and 25% white
c. 100% pink
d. 25% white and 75% red
e. 100% red
7. A man who has type B blood and a woman who has type A blood could have children of which of the following phenotypes?
a. A, B, or O
b. AB or O
c. A or B only
d. AB only
e. A, B, AB, or O
8. If one parent is blood type AB and the other is type O, what fraction of their offspring will be blood type A?
9. Which of the following matings can produce a child with blood type AB? The letters refer to blood types (phenotypes).
10. A woman with type O blood is expecting a child. Her husband is type A. Both the woman's father and her