Which tests detect anti-HIV antibodies?

A. ELISA and Western Blot
B. PCR and gene probe
C. Western Blot and PCRD.


Answer: A. ELISA and Western Blot

Biology & Microbiology

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Why are mycorrhizal fungi superior to plants at acquiring mineral nutrition from the soil?

A) Hyphae are one hundred to one thousand times larger than plant roots. B) Hyphae have a smaller surface-area-to-volume ratio than do the hairs on a plant root. C) Mycelia are able to grow in the direction of food. D) Fungi secrete extracellular enzymes that can break down large molecules.

Biology & Microbiology

The type of sediment limits the kinds of organisms that can live in a particular area

Indicate whether the statement is true or false

Biology & Microbiology

Why is the mouth of a culture tube passed through the Bunsen burner flame after removing and before replacing the cap?

What will be an ideal response?

Biology & Microbiology

All of the following factors influence the rate of photosynthesis EXCEPT

A) atmospheric CO2 levels. B) water availability. C) temperature. D) atmospheric N2 levels. E) light intensity.

Biology & Microbiology