2. Why is PCR useful?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. The key events in life’s history given below: I. First eukaryotes II. Earliest multicellular eukaryotes III. Colonization of land by fungi, plants, and animals IV. Cambrian explosion V. First prokaryotes. Which is the correct sequence of events?

a. I, V, IV, II, III

b. V, II, I, III, IV

c. I, V, II, III, IV

d. V, I, II, IV, III
 
2. Why is PCR useful? 
a. Because it replicates all the DNA in the cell
b. Because it produces a heat-tolerant DNA polymerase
c. Because it occurs on an automated device
d. Because it can produce large amounts of DNA from small amounts
 
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