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Characters of the Alzheimers disease

Write down some of the characters of the Alzheimer’s disease?

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Some of the characters of the Alzheimer’s disease are as follows:

a) Progressive memory loss, more in the aged people.

b) Takes place before 50 or before 40 years.

c) Atrophy of the cerebral cortex.

d) Genetic mutation-Down syndrome

e) Genes placed in the chromosome-21.

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