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BiologyBiology: The Unity and Diversity of Life (MindTap Course List)15th Edition
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A plasmid is a circle of ___ . a. RNA b. DNA c. either RNA or DNA d. histone proteins

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Biology: The Unity and Diversity o...

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

Solutions

Chapter
Section
Problem 1DAA
Problem 2DAA
Problem 3DAA
Problem 1SQ
Problem 2SQ
Problem 3SQ
Problem 4SQ
Problem 5SQ
Problem 6SQ
Problem 7SQ
Problem 8SQ
Problem 9SQ
Problem 10SQ
Problem 11SQ
Problem 12SQ
Problem 13SQ
Problem 14SQ
Problem 15SQ
Problem 1CT
Problem 2CT
Problem 3CT
Problem 4CT
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 20, Problem 12SQ
Textbook Problem
13 views

A plasmid is a circle of ___ .

  1. a. RNA
  2. b. DNA
  3. c. either RNA or DNA
  4. d. histone proteins

Summary Introduction

Introduction: Plasmids are the extra-chromosomal circular DNA found in many bacterial cells. Plasmids are used for the bacterial conjugation. It consists of genes like antibiotic resistance gene that provides the bacterial cells with additional features. Plasmids are independent of the chromosomal DNA for their replication. Plasmids are varied in size (ranges from hundreds to thousands DNA base pairs per plasmids).

Explanation of Solution

Reason for the correct answer:

Plasmids contain DNA base pairs that are arranged circularly.

Option b. is given as, “DNA”. DNA base pairs are the basic macromolecules that make up the chromosomes found in the plasmid DNA.

Hence the correct answer is option b.

Reason for the incorrect answer:

Option a. is given as “RNA”. RNA (ribonucleic acid) is the genome that is usually found in viruses. Therefore, they cannot be a part of the bacterial plasmids.

Hence, option a. is incorrect.

Option c...

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Chapter 20 Solutions

Biology: The Unity and Diversity of Life (MindTap Course List)
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Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - The genome of ___ can be either RNA or DNA. a. a...Ch. 20 - The capsid of a virion consists of ___ . a. DNA b....Ch. 20 - Bacteriophages kill their host quickly by ______ ....Ch. 20 - The genetic material of HIV (a retrovirus) is...Ch. 20 - Bacteria and archaea reproduce by ___ . a. binary...Ch. 20 - One cell transfers a plasmid to another by ___ ....Ch. 20 - ___ carry out oxygen-releasing photosynthesis. a....
Ch. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - New flu strains can arise by ___ . a. meiosis b....Ch. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - _____ in the stomach of a cow release methane. a....Ch. 20 - A plasmid is a circle of ___ . a. RNA b. DNA c....Ch. 20 - A bacterial exotoxin is a _______ . a. membrane...Ch. 20 - Both archaea and eukaryotes have ___ . a....Ch. 20 - Match the terms with their most suitable...Ch. 20 - Antibiotics enter the environment in wastewater...Ch. 20 - Adenoviruses that cause colds do not have a lipid...Ch. 20 - The antibiotic penicillin acts by interfering with...Ch. 20 - Raw red alga of the genus Porphyra is part of a...

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