2. Why is PCR useful?

Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter25: The Origin Of Life
Section: Chapter Questions
Problem 6TYK
Question

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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