The disinfectant action of phenol and phenolic derivatives mainly is due to ________.
A. its inherent detergent action
B. extraction of lipids from membranes
C. oxidation of disulfide bonds in proteins
D. membrane damage and protein denaturation
E. damage to nucleic acids and proteins caused by free radicals
Answer: D
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A cell's DNA molecules contain its genetic material. These molecules are constructed of
a. amino acids. b. proteins. c. sugars, phosphates, and bases. d. amino acids, proteins, sugars, phosphates, and bases. e. None of the other choices are correct.
Animal life depends on the ________ within a region to provide the essential resources of food and cover
Fill in the blank(s) with correct word
Small pieces of DNA synthesized on the lagging strand are called ________.
Fill in the blank(s) with the appropriate word(s).
The cells that undergo meiosis in males are
A) spermatocytes. B) spermatogonia. C) spermatids. D) oocytes. E) sperm.