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Author Question: An extra chromosome in the 20th pair results in Down Syndrome. (Read 49 times)

Chelseaamend

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Question 1

After finally being able to raise the head and chest, the infant is likely to develop next the motor skill of sitting up without support, according to the six identified motor milestones.
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Question 2

An extra chromosome in the 20th pair results in Down Syndrome.
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Marked as best answer by Chelseaamend on Dec 20, 2020

phuda

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Chelseaamend

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Reply 2 on: Dec 20, 2020
:D TYSM


komodo7

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Reply 3 on: Yesterday
Wow, this really help

 

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