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  2. X-linked recessive inheritance - Wikipedia

    en.wikipedia.org/wiki/X-linked_recessive_inheritance

    X-linked recessive inheritance. X-linked recessive inheritance is a mode of inheritance in which a mutation in a gene on the X chromosome causes the phenotype to be always expressed in males (who are necessarily hemizygous for the gene mutation because they have one X and one Y chromosome) and in females who are homozygous for the gene mutation, see zygosity.

  3. X-linked genetic disease - Wikipedia

    en.wikipedia.org/wiki/X-linked_genetic_disease

    An X-linked genetic disease is a disease inherited through a genetic defect on the X chromosome. In human cells, there is a pair of non-matching sex chromosomes, labelled X and Y. Females carry two X chromosomes, whereas males have one X and one Y chromosome. A disease or trait determined by a gene on the X chromosome demonstrates X-linked ...

  4. X-linked dominant inheritance - Wikipedia

    en.wikipedia.org/wiki/X-linked_dominant_inheritance

    X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome. As an inheritance pattern, it is less common than the X-linked recessive type. In medicine, X-linked dominant inheritance indicates that a gene responsible for a genetic disorder ...

  5. Sex linkage - Wikipedia

    en.wikipedia.org/wiki/Sex_linkage

    Sex linkage. Sex linked describes the sex-specific reading 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 ...

  6. Haemophilia - Wikipedia

    en.wikipedia.org/wiki/Haemophilia

    Haemophilia (British English), or hemophilia (American English) [6] (from Ancient Greek αἷμα (haîma) 'blood' and φιλία (philía) 'love of'), [7] is a mostly inherited genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding. [2][3] This results in people bleeding for a longer time after ...

  7. Wilson–Turner syndrome - Wikipedia

    en.wikipedia.org/wiki/Wilson–Turner_syndrome

    Wilson-Turner syndrome (WTS), also known as mental retardation X linked syndromic 6 (MRXS6), and mental retardation X linked with gynecomastia and obesity is a congenital condition characterized by intellectual disability and associated with childhood-onset obesity. [1] It is found to be linked to the X chromosome and caused by a mutation in ...

  8. Becker muscular dystrophy - Wikipedia

    en.wikipedia.org/wiki/Becker_muscular_dystrophy

    No current cure, Physical therapy [3] Becker muscular dystrophy (BMD) is an X-linked recessive inherited disorder characterized by slowly progressing muscle weakness of the legs and pelvis. It is a type of dystrophinopathy. [5][3] The cause is mutations and deletions in any of the 79 exons encoding the large dystrophin protein, essential for ...

  9. X-linked severe combined immunodeficiency - Wikipedia

    en.wikipedia.org/wiki/X-linked_severe_combined...

    Specialty. Hematology. X-linked severe combined immunodeficiency (X-SCID) is an immunodeficiency disorder in which the body produces very few T cells and NK cells. In the absence of T cell help, B cells become defective. [1] It is an X-linked recessive inheritance trait, stemming from a mutated (abnormal) version of the IL2RG gene located on ...