A drug that disrupts a microbial function not found in animal cells usually has a higher therapeutic index.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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Which of the following is not a defense of the genitourinary tract?

A. Lysozyme B. IgA C. Mucus secretions D. IgG E. Flushing action of urine

Biology & Microbiology

Cell biology emerged from which of the following fields of biology?

A) biochemistry B) cytology C) genetics D) biochemistry, cytology, and genetics E) cytology and biochemistry

Biology & Microbiology

Suppose that you examine a vial of 100 flies that are all offspring from a single genetic cross. Suppose also that you see that all the females present are red-eyed and all the males present are white-eyed. The allele for red eye colour (Xw+) is dominant over the allele for white eye colour (Xw). Which of the following describes the genotypes of the parents?

a. Xw+Xw; XwY b. XwXw; Xw+Y c. Xw+Xw+; XwY d. Xw+Xw; Xw+Y

Biology & Microbiology

Deoxyribose has a carbon atom that is not part of the pentose ring.  In a nucleotide, what is attached to this carbon?

A. three hydrogen atoms B. a nitrogenous base C. a phosphate group D. one hydrogen atom

Biology & Microbiology