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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 15, Problem 10QP
Textbook Problem
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What percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?

Summary Introduction

To determine: The percentage of the DNA that actually corresponds to genes in the genome.

Introduction: The human genome is large and contains over 3 billion nucleotides of DNA. The humans share about half of their genes with the fruit fly and share more than 98% of their genes with the chimpanzee.

Explanation of Solution

The human genome contains over 3 billion nucleotides of DNA but, only about 2% of the genome contains protein coding-sequences and this percentage of DNA in genome corresponds to genes...

Summary Introduction

To determine: The percentage of protein-coding exons in the human genome.

Introduction: Human genome contains over 3 billion nucleotides of DNA, but only a small percentage of the genome contains protein-coding sequences. About half of human non-coding DNA is composed of repeated sequences.

Summary Introduction

To determine: The identity of the rest of the human genome that does not encode proteins

Introduction: The human genome is large and contains over 3 billion nucleotides of DNA. Not all the genes in the human genome have been identified. So far only 20,000 of genes are identified, which is far lesser than predicted number of 80,000 to 100,000.

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