Keyword Analysis & Research: downs syndrome cause

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What conditions or disorders are commonly associated with Down syndrome?

Patients with Down syndrome are more prone to autoimmune diseases including hypothyroidism, diabetes, and celiac disease. Children are more prone to infections. Patients with Down syndrome have a higher risk to develop leukemia.

What are the causes and effects of Down syndrome?

Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes the developmental changes and physical features of Down syndrome. Down syndrome varies in severity among individuals, causing lifelong intellectual disability and developmental delays.

What is the most common cause for Down's syndrome?

There are three types of Down syndrome: Trisomy 21 means there's an extra copy of chromosome 21 in every cell. This is the most common form of Down syndrome. Mosaicism occurs when a child is born with an extra chromosome in some but not all of their cells. People with mosaic Down syndrome tend to have fewer symptoms than those with trisomy 21.

What are some signs and symptoms of Down syndrome?

Some characteristic signs and symptoms include intellectual disability, a small head, short neck, a flat face, upward slanting eyes, flat, low-set ears, and a protruding tongue. The most common cause of Down syndrome is trisomy 21, where the embryo gets three copies of chromosome 21, instead of two.

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