Karyotype Of Chromosomes In Down's Syndrome is a photograph by L. Willatt, East Anglian Regional Genetics Service which was uploaded on May 13th, 2013.
Karyotype Of Chromosomes In Down's Syndrome
Karyotype showing the arrangement of chromosomes in a male with Down's syndrome (trisomy-21), the most common diagnosable cause of mental handicap.... more
Title
Karyotype Of Chromosomes In Down's Syndrome
Artist
L. Willatt, East Anglian Regional Genetics Service
Medium
Photograph
Description
Karyotype showing the arrangement of chromosomes in a male with Down's syndrome (trisomy-21), the most common diagnosable cause of mental handicap. Down's syndrome is caused by a chromosomal anomaly the 21st set having three rather than the normal two chromosomes. In karyotyping, chromosomes are arranged in numbered pairs according to a standard classification. The male set differs from the female in the sex pair (bottom right); a female would have XX rather than XY. A male Down's karyotype is written 47,XY,+21. The normal chromosome count is 46, 23 from maternal and 23 from paternal origin.
Uploaded
May 13th, 2013
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