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Liono4ka [1.6K]
2 years ago
7

Describe physical or mental disability of Down syndrome

Biology
1 answer:
shepuryov [24]2 years ago
3 0

Answer:

It is usually associated with physical growth delays, mild to moderate intellectual disability, and characteristic facial features. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an eight- or nine-year-old child, but this can vary widely.

Symptoms: Delayed physical growth, characteristic facial features, mild to moderate i...

Other names: Down's syndrome, Down's, trisomy 21

Causes: Third copy of chromosome 21

Risk factors: Older age of mother, prior affected child

Explanation:

Hope it helps

FOLLOW MY ACCOUNT PLS PLS

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<h2>Answer:</h2>

The correct statement is option A which is, "A gene is a segment on the DNA. DNA is wrapped in proteins to form a chromosome".

<h3>Explanation:</h3>
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