Robinlynn228
09.07.2019 •
Biology
There are two main types of chromosomal disorders, those that take place on the 21st pair of chromosomes and those that
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Ответ:
Down syndrome and Alzheimer's disease.
Down syndrome is a chromosomal disorder which is caused by the presence of extra copy of chromosome 21. Therefore also called as Trisomy 21.
Alzheimer's disease is a most common form of dementia(reduction in brain functioning). It is caused by mutation in single gene APP (Amyloid Precursor Protein) present on chromosomer 21.
Ответ: