Chapter9: A Breath Of Fresh Air
Section: Chapter Questions
Problem 2CTE
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Question
what are the types of down syndrome
Expert Solution
Step 1 Introduction:
Down syndrome is a condition in which a person has an extra chromosome. people with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. It is also referred to as Trisomy 21. This extra copy changes how the person's body and brain develop, which can cause both mental and physical challenges for the baby.
Step 2 Concept:
There are three types of Down syndrome. The differences cannot be seen between each type without looking at the chromosomes because the physical features and behaviors are similar.
Trisomy 21: With this type of Down syndrome, each cell in the body has 3 separate copies of chromosome 21 instead of the usual 2 copies.
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