Fluorescent-labeled antibodies are primarily used on cells to locate a specific

a. DNA sequence.
b. RNA sequence.
c. protein.
d. carbohydrate.


Ans: c. protein.

Biology & Microbiology

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Photosynthetic organisms serve as the base for most food chains in the biosphere.

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

Biology & Microbiology

The virulence of this organism, which causes chancroid, is most likely attributed to:

a. proteases. b. capsular factors. c. hemolysins. d. catalase.

Biology & Microbiology

Which of the following statements is NOT correct about cnidarians?

A. Most are found in shallow coastal marine environments. B. A jellylike mesoglea separates the two tissue layers. C. The adult body is bilaterally symmetrical. D. Stinging cells contain a threadlike nematocyst released to capture prey. E. There are two tissue layers, an outer epidermis, and inner gastrodermis.

Biology & Microbiology

Which of the following arrangements is sometimes referred to as having a beads-on-a-string appearance?

A) streptococci B) staphylococci C) streptobacilli D) diplococci E) palisade

Biology & Microbiology