Which of the following cytoskeletal filaments are capable of growing and shrinking in the cell?
A. microtubules
B. intermediate filaments
C. microfilaments
D. Answers a and c are correct.
D
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In tuberculosis, when a caseous lesion calcifies, it is called a ________.
A. tubercle B. tuberculous cavity C. Ghon complex D. All of the choices are correct.
Woolly mammoths have been extinct for about 10,000 years, but we occasionally find one that has been preserved in Siberian permafrost. Resurrecting these huge elephantlike mammals may be possible by cloning DNA isolated from such frozen remains. Researchers are now studying the DNA of a remarkably intact baby mammoth recently discovered frozen in a Siberian swamp. What are some of the pros and
cons, both technical and ethical, of cloning an extinct animal? What will be an ideal response?
The genetics inherited by an individual will completely control their behavior.
Answer the following statement true (T) or false (F)
The first antimicrobial widely available for treatment of bacterial infections was the synthetic compound
A. sulfanilamide. B. isoniazid. C. bacitracin. D. streptomycin. E. penicillin.