Which of the following diseases cannot currently be prevented by vaccination?
A) AIDS
B) polio
C) measles
D) tetanus
Ans: A) AIDS
You might also like to view...
Four of the five regions listed below are experiencing less than 1.9 percent annual population growth
Select the exception.
a. Western Europe b. North America c. Africa d. Australia e. Russia
How does the liver produce urea?
A) The liver rapidly combines ammonia with oxygen B) The liver rapidly combines ammonia with uric acid C) The liver rapidly combines ammonia with creatine phosphate D) the liver rapidly combines the ammonia with carbon dioxide
The mechanism by which the information contained in DNA is coded into a complementary RNA copy is called:
a. translation. b. the one gene-one enzyme hypothesis. c. replication. d. transcription. e. the central dogma.
Compare and contrast clonal deletion and clonal selection of B lymphocytes
What will be an ideal response?