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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 2SQ
Textbook Problem
32 views

A _______ is a molecule that can be used to carry a fragment of DNA into a host organism.

  1. a. vector
  2. b. chromosome
  3. c. GMO
  4. d. cDNA

Summary Introduction

Introduction: In molecular biology techniques for DNA modifications, the term ‘vector’ refers to a nucleic acid molecule that carries an inserted foreign DNA fragment of interest and helps to transfer it into a host cell.

Explanation of Solution

Reason for correct answer:

Molecular biology techniques use restriction enzymes to cut DNA molecules or genes of interest and transfer these to other cells for DNA cloning. Cloning vectors are molecules, such as plasmids, that are used to transfer foreign DNA into host cells for cloning. The gene or DNA to be cloned is inserted into a cloning vector and the vector is added to a host cell, where it multiplies when the cell performs DNA replication.

Option a. is given as “vector”.

Hence, the correct answer is option a.

Reason for incorrect answer:

Option b. is given as “chromosome”.

Chromosomes are thread–like structures present in nucleus of most cells that contain compactly packaged DNA of the cells...

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