Downs syndrome karyotype, illustration - stock illustration

Karyotype showing the arrangement of chromosomes in a female with Downs syndrome (trisomy-21), the most common diagnosable cause of mental handicap, computer illustration. Downs 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 female set differs from the male in the sex pair (bottom right); a male would have XY rather than XX. A female Downs karyotype is written: 47, XX, +21. The normal chromosome count is 46, 23 from maternal and 23 from paternal origin.
Karyotype showing the arrangement of chromosomes in a female with Downs syndrome (trisomy-21), the most common diagnosable cause of mental handicap, computer illustration. Downs 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 female set differs from the male in the sex pair (bottom right); a male would have XY rather than XX. A female Downs karyotype is written: 47, XX, +21. The normal chromosome count is 46, 23 from maternal and 23 from paternal origin.
Downs syndrome karyotype, illustration
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