Campbell Biology In Focus
Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 15, Problem 7TYU

(a)

Summary Introduction

To draw:

The diagram that consist of 5 genes and the enhancers. Suppose that the blue, orange, green, red, purple and black are the activator proteins that binds to the appropriate color-coded control elements of the enhancers.

(a)

To draw an X above the enhancer elements that will transcribe only gene 5 and also, identify the colored activators present.

(b)

To draw a dot above the enhancer elements where blue, orange and green activators are present. Also, identify the transcribed genes.

(c)

Suppose, the genes 1, 2 and 4 codes for the proteins that are nerve-specific and genes 3 and 5 are the proteins that are skin-specific. To identify the activators that will ensure transcription of the appropriate genes.

Concept introduction:

A gene (eukaryotic) and the elements of DNA (deoxyribonucleic acid) are organized properly. The transcription initiation complex (cluster of proteins) assembles on the promoter sequence and the processing or transcription process is initiated.

Pictorial representation:

Campbell Biology In Focus, Chapter 15, Problem 7TYU

Figure 1: Transcription of genes with the help of enhancer elements.

To draw:

An X above the enhancer elements that will transcribe only gene 5 and also, identify the colored activators present.

(b)

Summary Introduction

To draw:

A dot above the enhancer elements where blue, orange and green activators are present. Also, identify the associated transcribed genes.

(c)

Summary Introduction

To suppose:

The genes 1, 2 and 4 codes for the proteins that are nerve-specific and genes 3 and 5 codes for the proteins that are skin-specific. And, identify the activators that will ensure transcription of the appropriate genes.

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