Which of the following statements regarding sickle-cell disease is false?
A) Persons who are heterozygous for sickle-cell disease are also resistant to malaria.
B) Sickle-cell disease causes white blood cells to be sickle-shaped.
C) All of the symptoms of sickle-cell disease result from the actions of just one allele.
D) About 1 in 10 African Americans is a carrier of sickle-cell disease.
Answer: B
You might also like to view...
The family of reoviruses contain dsRNA genomes that replicate from the template of ________ which makes it a ________ replication process
A) only the positive ssRNA strand / conservative B) only the positive ssRNA strand / semiconservative C) both RNA strands /conservative D) both RNA strands / semiconservative
What does an organism need to be classified as Lophotrochozoa?
a. a set of ciliated tentacles around the mouth b. free-swimming larvae with two bands of cilia c. triploblastic germ layers and bilateral symmetry d. a fully formed true coelom lined by mesoderm
____________________ is the branch of genetics that is used to map genes and study chromosome structure and
abnormalities in chromosome number and organization. Fill in the blank(s) with the appropriate word(s).
__________ is the least frequent of the dispersal patterns seen in nature
a. Random dispersion b. Aggregated distribution c. Uniform dispersion d. Density-dependent distribution e. Clumped dispersion