genetic disorder

కొంతమంది అడిగారు దానికి సమాధానం గా ఇది వ్రాస్తూ ఉన్నాను. 

Trisomy

A genetic disorder in which a person has three copies of a chromosome instead of two.

A genetic chromosome 21 disorder causing developmental and intellectual delays.

Down's syndrome is a అని అంటారు genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21 (trisomy 21).

Monosomy is a form of aneuploidy with the presence of only one chromosome from a pair.[1] Partial monosomy occurs when a portion of one chromosome in a pair is missing.

Human conditions due to monosomy:

Turner syndrome – Females with Turner syndrome typically have one X chromosome instead of the usual two X chromosomes. Turner syndrome is the only full monosomy that is seen in humans — all other cases of full monosomy are lethal and the individual will not survive development.

Cri du chat syndrome – (French for "cry of the cat" after the persons' malformed larynx) a partial monosomy caused by a deletion of the end of the short arm of chromosome 5

1p36 deletion syndrome – a partial monosomy caused by a deletion at the end of the short arm of chromosome 1

17q12 microdeletion syndrome – a partial monosomy caused by a deletion of part of the long arm of chromosome 17