GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS
6th Edition
ISBN: 9781260239775
Author: BROOKER
Publisher: MCG
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Chapter 20.3, Problem 3COMQ
Summary Introduction

Introduction:

The selfish DNA (deoxyribonucleic acid) hypothesis is about the organisms that require a specific amount of DNA, which can contain any sequence. Selfish DNA is the DNA that has two different properties, like the spreading of DNA sequence by formation of additional copies in genome and through the making of no particular contribution in the reproductive success of host.

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Why do plants and animals thrive with so many transposable elements in their genomes?a. Most of the transposable elements are inactive due to mutation.b. Active transposable elements are silenced by the host.c. Most transposable elements are inserted in safe havens.d. All of the above are true.
Some strains of Escherichia coli bacteria have acquired the ability to produce the harmful Shiga toxin, normally produced by Shigella dysenteriae. Which statements best explain why this occurs? Mark all that apply.   A. conjugation between two different species of bacteria allowed both strains of bacteria to express a virulence factor B. transformation resulted in expression of a virulence factor C. horizontal gene transfer between different species of bacteria D.  transduction of a specific gene resulted in expression of new traits
Which genes can be transferred by all three methods of horizontal gene transfer? a. capsule production b. toxin production c. F factord. drug resistance

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GENETICS:ANALYSIS+PRIN.(LL)-W/ACCESS

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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY