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PCR (polymerase chain reaction) is a technique that can amplify the amount of DNA by a factor of more than 1,000,000. In PCR, each cycle of amplification involves each of the following steps except:

Southern blotting, Northern blotting, and Western blotting are laboratory techniques to identify _______, _______, and _______, respectively.

The melting temperatures (Tm) of the DNA purified from several organisms are given in (a) through (e) below. From these melting temperatures, which organism has DNA with the highest A+T content?

If 1.0 nanograms of DNA is amplified by PCR, approximately how much DNA would be expected to be present after 10 cycles of amplification?

Cells contain several major types of RNA molecules: messenger RNA, transfer RNA, ribosomal RNA, and small nuclear RNA. What percentage of total cell RNA is ribosomal RNA?

The pH scale is a convenient way to express H+ concentrations in biological samples.  For two solutions with pH values that differ by 3.0 pH units, the H+ concentrations differ by:      

Order: theophylline 100 mg PO. Dose on hand: theophylline 150 mg/15mL elixir. How many teaspoons (tsp) of theophylline elixir will the nurse administer?

EGD stands for ______. 

What is the structure pictured below? 

What’s the mechanism of action of a  bacteriostatic drug?