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Dictionary » G » Gene

Gene

Definition

noun, plural: genes

(cell and molecular biology)

The fundamental, physical, and functional unit of heredity.


Supplement

It is because a gene is a segment of DNA (on a specific site on a chromosome) that is responsible for the physical and inheritable characteristics or phenotype of an organism. It also specifies the structure of a protein, and an RNA molecule.

A gene is formerly called a factor.


Word origin: German Gen, from gen-, begetting, in Greek words (such as genos, race, offspring).
Derived forms: genetic (adjective).
Synonym: factor (obsolete).
See also: DNA, allele, recessive, dominant.


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Mitochondrial Gene Replacement

Researchers have figured out a potential way to prevent mitochondrial DNA related diseases by trading out healthy mitochondria for the mutated mitochondria. Apparently there are no side effects. Read more

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by jyaron
Sun Sep 06, 2009 4:01 am
 
Forum: Genetics
Topic: Mitochondrial Gene Replacement
Replies: 0
Views: 13

The gene P21 makes people live short or longer?

All genes are necessary and required.. that's the general rule of genomics. It's mutations in genes that affect the "good" or "bad" effects of the gene in particular. Considering the pathway the p21 gene ...

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by jyaron
Sat Sep 05, 2009 10:36 pm
 
Forum: Genetics
Topic: The gene P21 makes people live short or longer?
Replies: 1
Views: 40

Primer problem

... us unwanted banding in our gels and it turned out that our primers were fine. Maybe you could try ordering a primer for a different section of the gene? We usually order 2-3 different primers for any given gene we're testing for.. after all, it is pretty inexpensive.

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by jyaron
Sat Sep 05, 2009 10:29 pm
 
Forum: Molecular Biology
Topic: Primer problem
Replies: 1
Views: 15

Primer problem

Hi I designed a specific primers and blast it to amplify my gene. this primer amplifies a gDNA of the gene. I used dreamtaq kit and its protocol but unfortunately the expected product (2054 bp) was not there and what I got is several bands below and above ...

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by roniadam
Sat Sep 05, 2009 3:10 am
 
Forum: Molecular Biology
Topic: Primer problem
Replies: 1
Views: 15

Re: what is gametes in DNA?

If you insert a new gene, is it necessary to replace another gene with it? That is, does DNA have a fixed number of genes, such that the specific number of genes must be maintained--otherwise the DNA would be defective? Do both gamete ...

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by canalon
Sat Sep 05, 2009 2:03 am
 
Forum: Genetics
Topic: what is gametes in DNA?
Replies: 3
Views: 48
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