Dictionary » G » Genetic marker

Genetic marker

Definition

noun, plural: genetic markers

A gene or (a fragment of) DNA sequence having a known location on a chromosome, has an easily identifiable phenotype and whose inheritance pattern can be followed.


Supplement

Genetic markers act as chromosomal landmarks. They are used to trace or identify specific region of a gene (especially one that is associated with an inherited disease) on a chromosome. They are also used to determine a linkage group or a recombination event.


Also called: marker, marker gene, DNA marker.
See also: genetic map.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Calculating genetic distance

... in the Columbia ecotype of Arabidopsis, pass1, was mapped relative to marker A. For homozygous F2 pass1 plants from a Columbia © x Landsberg (L) ... the results for marker A were 60 CC, 10 CL, and 4 LL. Calculate the genetic distance (cM) between marker A and pass1. I used the equation: Distance ...

See entire post
by SailorNorway
Sun Jun 30, 2013 11:36 am
 
Forum: Genetics
Topic: Calculating genetic distance
Replies: 0
Views: 752

Bio Research Paper Writing

... DDR serves as a front line of defense against the genetic changes associated with these viruses so viruses has evolved to evade ... also alter other aspects of the cell’s defense such as cell surface markers. CMV and adenoviruses decrease the expression of a cell’s MHC recognition ...

See entire post
by NathanielZhu
Thu Apr 04, 2013 2:25 am
 
Forum: General Discussion
Topic: Bio Research Paper Writing
Replies: 1
Views: 12643

cell specific markers

Do such genetic markers exist? Markers that are present in one population (at least to a certain percentage) but not in another? ...

See entire post
by MarkHolland
Sat Mar 30, 2013 3:16 pm
 
Forum: Cell Biology
Topic: cell specific markers
Replies: 3
Views: 6279

Re: Stomach bloating and weight gain

... this so I warn everyone to be careful if they try it. I read about the genetic marker of the MTHFR. Some websites report that 3 out of 5 people have it, some say 2 out of ...

See entire post
by CureIt
Wed Feb 29, 2012 12:30 pm
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 453
Views: 2731875

linkage disequlibrium, haplotypes, SNPs

... between LD, haplotypes and SNPs. Is that correct? SNPs act as markers, they may be in LD with the susceptibility alleles for a disease. Generally, SNPs together with other genetic variants (like disease alleles) can be inherited in/as haplotypes, which means ...

See entire post
by tou
Thu Apr 21, 2011 12:11 am
 
Forum: Genetics
Topic: linkage disequlibrium, haplotypes, SNPs
Replies: 1
Views: 1799
View all matching forum results

This page was last modified 06:32, 3 November 2008. This page has been accessed 11,530 times. 
What links here | Related changes | Permanent link