Four children of a man and woman who are second cousins have too few teeth, which is an autosomal recessive condition called oligodontia caused by mutation in a gene called LTPB3 on chromosome 11. The affected individuals are also short, with increased bone density in the spine and skull. The protein that causes the symptoms by affecting certain bone cells is too short. The mutation in this family is most likely
A) a missense mutation.
B) a nonsense mutation.
C) a duplication of the gene.
D) a replacement of all purines with pyrimidines.
B) a nonsense mutation.
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Which region of the lac operon would you target if you want to disrupt the -10 and -35 consensus sequences?
A) lacZ B) lacY C) lacI D) lacP E) lacO
Answer the following questions true (T) or false (F)
1. The Ebola virus is a single-stranded RNA virus. 2. Endocarditis is mainly seen in people who have damaged, abnormal, or artificial heart valves or other heart defects. 3. Rocky Mountain spotted fever continues to be isolated to those states that border the Rocky Mountains.
What happens during phagocytosis?
)
A. The CDC is primarily responsible for the tracking of infectious diseases in the United States. B. Barbara McClintock helped establish the foundations of modern epidemiology. C. Epidemiologists only study infectious diseases and their statistics within a population. D. Epidemiologists study the frequency and distribution of disease within a population.