What does x-linked gene mean?

Definitions for x-linked gene
x-linked gene

This dictionary definitions page includes all the possible meanings, example usage and translations of the word x-linked gene.

Princeton's WordNet

  1. X-linked genenoun

    a gene located on an X chromosome

Wiktionary

  1. X-linked genenoun

    Any gene located on the sex chromosomes. Typically, these genes are found on the X chromosome and not on the Y chromosome.

Wikipedia

  1. x-linked gene

    Sex linked describes the sex-specific patterns of inheritance and presentation when a gene mutation (allele) is present on a sex chromosome (allosome) rather than a non-sex chromosome (autosome). In humans, these are termed X-linked recessive, X-linked dominant and Y-linked. The inheritance and presentation of all three differ depending on the sex of both the parent and the child. This makes them characteristically different from autosomal dominance and recessiveness. There are many more X-linked conditions than Y-linked conditions, since humans have several times as many genes on the X chromosome than the Y chromosome. Only females are able to be carriers for X-linked conditions; males will always be affected by any X-linked condition, since they have no second X chromosome with a healthy copy of the gene. As such, X-linked recessive conditions affect males much more commonly than females. In X-linked recessive inheritance, a son born to a carrier mother and an unaffected father has a 50% chance of being affected, while a daughter has a 50% chance of being a carrier, however a fraction of carriers may display a milder (or even full) form of the condition due to a phenomenon known as skewed X-inactivation, in which the normal process of inactivating half of the female body's X chromosomes preferably targets a certain parent's X chromosome (the father's in this case). If the father is affected, the son will not be affected, as he does not inherit the father's X chromosome, but the daughter will always be a carrier (and may occasionally present with symptoms due to aforementioned skewed X-inactivation). In X-linked dominant inheritance, a son or daughter born to an affected mother and an unaffected father both have a 50% chance of being affected (though a few X-linked dominant conditions are embryonic lethal for the son, making them appear to only occur in females). If the father is affected, the son will always be unaffected, but the daughter will always be affected. A Y-linked condition will only be inherited from father to son and will always affect every generation. The inheritance patterns are different in animals that use sex-determination systems other than XY. In the ZW sex-determination system used by birds, the mammalian pattern is reversed, since the male is the homogametic sex (ZZ) and the female is heterogametic (ZW). In classical genetics, a mating experiment called a reciprocal cross is performed to test if an animal's trait is sex-linked.

ChatGPT

  1. x-linked gene

    An X-linked gene is a gene that is located on the X chromosome, one of the two sex chromosomes in many organisms. These genes play a major role in determining sex-linked traits and conditions, which can be inherited through the maternal line. Mutations in these genes can lead to X-linked diseases. Men are more likely to be affected by these disorders as they possess only one X chromosome, and a single recessive gene on that chromosome can result in disease.

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Numerology

  1. Chaldean Numerology

    The numerical value of x-linked gene in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of x-linked gene in Pythagorean Numerology is: 2


Translations for x-linked gene

From our Multilingual Translation Dictionary

  • الجينات المرتبطة XArabic

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"x-linked gene." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/x-linked+gene>.

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