Which of the following uses specific genes of microorganisms cloned into vectors and mass- produced in bacteria to make large quantities of specific substances to stimulate the immune system?
a. Gene therapy
b. Insulin synthesis
c. Genetic diagnosis
d. Vaccine production
d. Vaccine production
Modern vaccine production uses specific genes of microorganisms, such as the H1N1 form of influenza, which are cloned into vectors and mass-produced in bacteria. When these genes are injected into the body, they can stimulate the immune system against infectious disease.
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Which of the following amino acids has a nonpolar thioether R group?
A. cysteine B. serine C. tryptophan D. methionine E. None of the choices given is correct.
What pattern of inheritance includes the AB blood type, in which both A and B alleles are expressed?
A) incomplete dominance B) codominance C) independent assortment D) sex linkage
Which form of electromagnetic radiation has the shortest wavelength?
A) Gamma rays and X rays B) Ultraviolet light C) Visible light D) Infrared light
As a dermatologist trying to help reduce the incidence of skin cancer, which environmental agents known to be associated with skin cancer would you recommend your patients avoid?
A. cadmium B. benzene C. nickel D. arsenic E. polycyclic aromatic hydrocarbons F. endocrine disruptors