Following treatment with restriction enzymes, what procedure would be used to separate DNA fragments of different lengths?

A. Transformation.
B. Gel electrophoresis.
C. Polymerase chain reaction.
D. Microarray analysis.


B. Gel electrophoresis.

Biology & Microbiology

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At what depth would water pressure be 4 times greater than atmospheric pressure at the surface?

a. 10 meters b. 20 meters c. 30 meters d. 40 meters e. 50 meters

Biology & Microbiology

In response to a high fat content in chyme, the duodenum releases ____

a. gastrin b. somatostatin c. CCK d. secretin e. GIP

Biology & Microbiology

Urochordates are odd chordates, as typically only the ____ show(s) the basic chordate characteristics

a. head end b. tail end c. adult d. larva e. egg

Biology & Microbiology

Which of the following is an organic chemical water pollutant?

A. cyanide B. pesticides C. heavy metals D. chloride ions

Biology & Microbiology