X-linked: Difference between revisions
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An X-linked [[Gene|gene]] is a [[Gene|gene]] which is coded for on the X [[Chromosome|chromosome]]. [[Mutations|Mutations]] of said [[Gene|gene]] are therefore more likely to be presented in males as males have only one copy of the gene. | |||
Patterns of [[Inheritance|inheritance]] in [[X-linked disease|X-linked diseases]] are complicated by the fact that fathers always pass their X [[Chromosome|chromosome]] to their daughters where-as mothers pass the X [[Chromosome|chromosome]] to daughters and sons equally. | |||
Colourblindness is an example of an X-linked [[Recessive|recessive]] disease. Which is much more prevelent in males. | |||
Colourblindness is an example of an X-linked recessive disease. Which is much more prevelent in males. | |||
Revision as of 19:10, 25 October 2012
An X-linked gene is a gene which is coded for on the X chromosome. Mutations of said gene are therefore more likely to be presented in males as males have only one copy of the gene.
Patterns of inheritance in X-linked diseases are complicated by the fact that fathers always pass their X chromosome to their daughters where-as mothers pass the X chromosome to daughters and sons equally.
Colourblindness is an example of an X-linked recessive disease. Which is much more prevelent in males.