Which of the following techniques is best suited to study protein interactions?

A) PCR
B) The yeast two-hybrid system
C) Restriction mapping
D) RT-PCR
E) Southern blotting


B

Biology & Microbiology

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In the lab, you choose to design a simple experiment to distinguish between hydrophilic and hydrophobic substances. You start by adding equal amounts of vinegar and oil to a container. After shaking, the vinegar and oil levels separate, based upon polarity and density. To this you add glucose and sodium citrate and shake again. Where do you expect to find the glucose and sodium citrate in

greatest quantities? A) Both will concentrate in the oil layer. B) The glucose will concentrate in the vinegar, sodium citrate in the oil. C) Both will concentrate in the vinegar layer. D) Sodium citrate will concentrate in the vinegar, glucose in the oil. E) Both will be uniform throughout both layers.

Biology & Microbiology

A protein folded into an infectious conformation that is the cause of several disorders is called a(n) ____________________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following characteristics are shared by all living organisms?

I. hereditary information is passed to offspring II. adaptation to environmental change III. requirement for nutrients IV. DNA housed in a nucleus

a. I and II b. I and III c. II and III d. I, II, and III e. I, II, III, and IV

Biology & Microbiology

As the density of a population increases, dispersal usually decreases

Indicate whether the statement is true or false

Biology & Microbiology