Answered: 2. Why is PCR useful?

Science

Biology

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

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Concept explainers

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.

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

Definition Definition Diverse group of organisms that primarily obtain nutrients through absorption. They range from single-celled yeasts to complex multi-cellular structures such as mushrooms. Fungi play important roles in ecosystems as decomposers, plant symbionts, and even pathogens. They also have practical uses in medicine, food production, and industry.

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