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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 15, Problem 1SQ
Textbook Problem
344 views

_________ cut(s) DNA molecules at specific sites.

  1. a. DNA polymerase
  2. b. DNA probes
  3. c. Restriction enzymes
  4. d. Reverse transcriptase

Summary Introduction

Introduction: Restriction enzymes are enzymes present in prokaryotes, including bacteria and archaea, which help them to destroy invading viruses by selectively cutting foreign DNA and preventing viral replication. They have been used in molecular biology techniques for DNA modifications.

Explanation of Solution

Reason for correct answer:

Restriction enzymes slice DNA molecules into smaller fragments if they recognize specific nucleotide sequences, called restriction sites, in the DNA molecules. Molecular biology techniques use restriction enzymes for DNA modifications due to these characteristics.

Option c. is given as “restriction enzymes”.

Hence, the correct answer is option c.

Reason for incorrect answer:

Option a. is given as “DNA polymerase”.

DNA polymerases are enzymes involved in replication of DNA, and they synthesize a complimentary DNA strand from a DNA template. It does not cleave DNA molecules at specific sites...

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