Record

Reference numberEC/1972/01
Previous numbersCert XIX, 38
LevelItem
TitleBarr, Murray Llewellyn: certificate of election to the Royal Society
DescriptionCitation typed
CitationDiscovered the presence of 'sex chromatin' in cells of human females as well as in females of other mammalian species. Introduced a cytological test for the detection of sex chromatin, which is used for genetic analysis of individuals as well as for mass surveys of newborn and adult populations. Showed the dependence of sex chromatin on the presence of two X chromosomes in the individual's cells. Shared in the demonstration that, in addition to recognition of the normal female XX and male XY chromosomal patterns, the sex chromatin could be used to identify persons with abnormal sex chromosome complexes (such as XXY in Klinefelter's syndrome, XO in Turner's syndrome, XXXY and XXXXY errors in males, and XXX and XXXX errors in females). Added to knowledge of mental and physical disorders caused by abnormalities of the sex chromosome complex. Contributed to the cytological and genetic properties of the X and Y chromosomes.
Access statusOpen
Image

Barr, Murray Llewellyn: certificate of election to the Royal Society

Fellows associated with this archive
CodeNameDates
NA2120Barr; Murray Llewellyn (1908 - 1995)1908 - 1995
Add to My Items

    Collection highlights

    Browse the records of some of our collections, which cover all branches of science and date from the 12th century onwards. These include the published works of Fellows of the Royal Society, personal papers of eminent scientists, letters and manuscripts sent to the Society or presented at meetings, and administrative records documenting the Society's activities since our foundation in 1660.

    The Royal Society

    The Royal Society is a Fellowship of many of
    the world's most eminent scientists and is the
    oldest scientific academy in continuous existence.
    Registered charity number 207043

    Website design ©CalmView



    CONTACT US

    + 44 207 451 2500
    (Lines open Mon-Fri, 9:00-17:00. Excludes bank holidays)

    6-9 Carlton House Terrace, London SW1Y 5AG

    Email Us →

    SUBSCRIBE

    Subscribe to our newsletters to be updated with the
    latest news on innovation, events, articles and reports.

    Subscribe →

    © CalmView