Dictionary » G » Gene duplication

Gene duplication

Definition

noun

A portion of the genetic material is duplicated or replicated resulting in multiple copies of that region.


Supplement

Gene duplication may lead to mutation and certain disorders. For instance, duplications of oncogenes cause many types of cancer, such as in the case of P70-S6 Kinase 1 amplification and breast cancer.

Gene duplication is also an important event in terms of evolution. Through duplication, many copies of genes in the genome can be produced. This would allow each gene to evolve independently to possess distinct functions. Such a set of evolutionarily related genes can be referred to as gene family.


Synonyms:


Compare: deletion mutation.
See also: mutation


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Re: Evolution or De-evolution?

... – refers to molecular changes over time (ex. Genetic mutations, lateral gene transfer, etc.) that have been proven to be able to affect phenotype ... My second problem is the idea of genome duplication. At first the genome duplication was said to be the driving force ...

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by RabbitPhilosopher
Sat Jul 20, 2013 9:53 pm
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 40815

Re: Evolution or De-evolution?

... – refers to molecular changes over time (ex. Genetic mutations, lateral gene transfer, etc.) that have been proven to be able to affect phenotype ... My second problem is the idea of genome duplication. At first the genome duplication was said to be the driving force ...

See entire post
by Cat
Mon Jul 08, 2013 8:48 pm
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 40815

Re: Re:

You are right and wrong at the same time. Translocation and duplication take place - fact. This can result in a new trait - fact. However, we talking about the SAME (already present in the gene pool) DNA material. "This extraneous DNA, if further modified can become ...

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by thoffnagle
Mon Jul 01, 2013 4:37 pm
 
Forum: Evolution
Topic: Is evolution as simple as we think?
Replies: 38
Views: 21452

Re: Re:

You are right and wrong at the same time. Translocation and duplication take place - fact. This can result in a new trait - fact. However, we talking about the SAME (already present in the gene pool) DNA material. What you say above does not make any sense. It is irrelevant ...

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by biohazard
Mon Jul 01, 2013 6:46 am
 
Forum: Evolution
Topic: Is evolution as simple as we think?
Replies: 38
Views: 21452

Re: Re:

That does not mean that new genes aren't/can't be created through mutations and mistakes during mitosis/meiosis. ... example is that DNA strands can break and be reattached in the wrong place causing duplication of genes or the entire genome can be duplicated erroneously. This extraneous ...

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by Cat
Sun Jun 30, 2013 3:42 pm
 
Forum: Evolution
Topic: Is evolution as simple as we think?
Replies: 38
Views: 21452
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