Q. Down syndrome is caused by

डाउन सिन्ड्रोम किसके कारण होता है?

A
Deletion of chromosome 21
गुणसूत्र 21 का विलोपन
B
Duplication of chromosome 21
गुणसूत्र 21 का दोहराव
C
Trisomy of chromosome 21
गुणसूत्र 21 की त्रिगुणसूत्रता
D
Monosomy of chromosome 21
गुणसूत्र 21 की मोनोसॉमी

Explanation

Down syndrome is a genetic disorder caused by an individual having three copies (trisomy) of chromosome 21, leading to physical and intellectual developmental delays.

डाउन सिंड्रोम एक आनुवंशिक विकार है जो व्यक्ति में गुणसूत्र 21 की तीन प्रतियां (ट्राइसॉमी) होने के कारण होता है, जिसके कारण शारीरिक और बौद्धिक विकास में देरी होती है।

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