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In biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic ...

What is a gene mutation and how do mutations occur? - Genetics ...


A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.

What kinds of gene mutations are possible? - Genetics Home ...


The DNA sequence of a gene can be altered in a number of ways. Gene mutations have varying effects on health, depending on where they occur and whether ...

This change can affect a single nucleotide pair or larger gene segments of a chromosome. Point mutations can be categorized into three types: Silent Mutation: Although a change in the DNA sequence occurs, this type of mutation does not change the protein that is to be ... More »
By Regina Bailey, About.com Guide

What Is Mutation? - Learn Genetics


But mutation is not always bad. Most DNA changes fall in the large areas of the genome that sit between genes, and usually they have no effect. When variations  ...

Mutations and Disease | Understanding Genetics


Few mutations are bad for you. In fact, some mutations can be beneficial. Over time, genetic mutations create genetic diversity, which keeps populations healthy.

The causes of mutations - Understanding Evolution


Gene flow · Sex and genetic shuffling ... Mutations happen for several reasons. ... Mutations can also be caused by exposure to specific chemicals or radiation.

Genetic Mutation | Learn Science at Scitable - Nature


A mutation is a heritable change in the nucleotide sequence of an organism's DNA that ultimately serves as a source of genetic diversity. A single base change  ...

The Genetics of Cancer | Cancer.Net


Acquired mutations are the most common cause of cancer. These occur from damage to genes during a person's life. They are not passed from parent to child.

Popular Q&A
Q: What are the types of gene mutation?
A: base substitution , base insertions , base deletions , base inversions. Read More »
Source: wiki.answers.com
Q: What is not a gene mutation?
A: Insertion Read More »
Source: wiki.answers.com
Q: What is gene mutation?
A: n A sudden and permanent change in a gene. The term mutation is sometimes used in a broader sense to include chromosome aberrations. Read More »
Source: www.answers.com
Q: What is an example of a gene mutation?
A: A gene mutation is a permanent change in the DNA sequence that makes up a Read More »
Source: www.chacha.com
Q: What are the types of gene mutations?
A: Types of gene mutations include missense, nonsense, insertion, deletion, Read More »
Source: www.chacha.com