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In biology, a mutation is a permanent alteration 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

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.

What Is Mutation? - Learn Genetics - University of Utah


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  ...

Genetic Mutation | Learn Science at Scitable - Nature


Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. These changes occur at many different levels, and ...

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.

10 Unusual Genetic Mutations in Humans - io9


Apr 5, 2013 ... But sometimes these biological differences lead to genetic mutations that are extremely rare, and sometimes debilitating. Historically, many ...

Popular Q&A
Q: What is gene mutation caused by?
A: Mutagens. Read More »
Source: wiki.answers.com
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: www.answers.com
Q: What is gene mutation.
A: changing of amino acjd code for particular protein at one point in dna due to external factors & genetic variations. Read More »
Source: www.answers.com
Q: What are the types of gene mutations?
A: Types of gene mutations include missense, nonsense, insertion, deletion, duplication, frameshift, repeat Read More »
Source: www.chacha.com