An ELISA uses which of the following reagents?

A. A source of complement
B. A radioactive antibody
C. An enzyme-labeled anti-antibody
D. An enzyme-linked antibody
E. A fluorescent enzyme


Answer: D. An enzyme-linked antibody

Biology & Microbiology

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Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

What will be an ideal response?

Biology & Microbiology

The male gametophytes are

a. ovules. b. seeds. c. pollen grains. d. cones. e. sperm cells.

Biology & Microbiology

In science the word "theory"

a. signifies that a hypothesis has been tested and proven over a period of time. b. means that a scientist has a hunch something is true. c. has essentially the same meaning as "hypothesis." d. carries a considerable amount of doubt as to its validity. e. is an explanation that has been published.

Biology & Microbiology

If you teach your dog to sit by giving him a treat for every correct response, this is an example of

A) operant conditioning. B) social learning. C) habituation. D) innate behavior. E) insight learning.

Biology & Microbiology