Complement is a group of ______ found in the bloodstream.

A. carbohydrates
B. phospholipids
C. steroids
D. proteins


D. proteins

Biology & Microbiology

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The majority of bacterial DNA is negatively super coiled

Indicate whether the statement is true or false

Biology & Microbiology

Lesion-replicating polymerases are _________

A. Only active in skin cells B. Used to replicate damaged DNA C. Used to induce genetic diversity D. None of the answers are correct

Biology & Microbiology

In animal cells, hydrolytic enzymes are packaged to prevent general destruction of cellular components. Which of the following organelles functions in this compartmentalization?

a. chloroplast b. lysosome c. central vacuole d. peroxisome e. glyoxysome

Biology & Microbiology

Which of the following antibiotics is NOT bactericidal?

A) aminoglycosides B) cephalosporins C) polyenes D) rifampins E) penicillin

Biology & Microbiology