Word Count : 239

---

Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21, a condition known as trisomy 21. It is one of the most common chromosomal abnormalities in humans and occurs due to nondisjunction _________ _________ _____ ______ _______ ______ ____ _______.
__________ ___ _______ _______ _________ _________ __________ _________.
____ _____ ___ _____ ________ _______ ____ ______ _____.
________ __________ _____ ______ ____ _____ ________ _______ ___.
___ ______ __________ ________ __________ _____ _________ __________ ___ ____ _________ ____.
_______ ________ _______ ______ _________ ________ ______ ________ ______ ________ _______.
_______ ________ ________ ___ __________ ________ ____ ________ ____ ___.
____ _______ ______ _______ _________ ________ __________ _________.
______ _________ _________ _________ ___ _________ ______ _________ __________ __________ ____ _______.
_________ _____ ____ _______ ____ ____ _________ ________ ____ ___ ___.
____ _________ ________ ______ _____.
_____ __________ _____ __________ ________ _________ ___ ___ ____.
__________ ___ ___ _______ __________ _______ __________ ___ ___ ______ _________ _______.
__________ _______ ________ _______ _______ ______.
_______ _____ _____ ___ _________ _____ _______ _________ _________ __________ _________.
____ ________ __________ ______ _________ __________ ________ __________ ______ ___ _________ _________.
_______ ___ __________ _____ ________ ________ ______.
_____ ______ ___ __________ ___ ___ _______ __________ ___.
______ _________ ____ ______ _____ __________ _________ _____ ____.
_________ ____ ________ ___ ______ _____ __________ _________ __________ ________ ____.
____ _________ _________ ______ _______ _________ ____ _______ _____ ______ _________.
Get Full Answer on WhatsApp