Receptors on the surface of pathogens that are made of glycoproteins and lipoproteins are called
a. capsules.
b. slime layers.
c. adhesins.
d. adhesives.
Answer: C
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Regardless of the exact approach taken to recombinant DNA technology, one of the keys to successful cloning is choosing the right vector.
Answer the following statement true (T) or false (F)
Active immunity may be produced by
a) having a disease b) receiving a vaccine c) receiving gamma globulin injections d) both a and b e) both B and C are correct
Which of the following was first produced commercially using recombinant DNA technology?
A. Interleukins B. Human growth hormone C. Hepatitis B vaccine D. Human insulin
You are observing a cell through a microscope and note that it has no apparent nucleus. You conclude that it most likely
a. Has a peptidoglycan cell wall. b. Has a cellulose cell wall. c. Moves by pseudopods. d. Is part of a multicellular animal. e. Is a plant cell.