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Ron and Marla want to know how many babies are born with Down syndrome. You tell them that Down syndrome occurs in approximately 1 out of every ______ births.
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Ron and Marla want to know how many babies are born with Down syndrome. You tell them that Down syndrome occurs in approximately 1 out of every ______ births.

User Shreya Agarwal
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1 Answer

5 votes

Answer:

700

Step-by-step explanation:

Down syndrome occurs when a person has an extra chromosome. Chromosomes are extremely important and determine how the body functions as it grows in the womb and after birth. A normal baby is born with 46 chromosomes. Babies with Down syndrome have an extra copy added to these chromosomes which is termed chromosome 21. A medical term for having an extra chromosome is ‘trisomy.’

Statistics reveal that the probability of having a baby with down syndrome is 1 out of 700 births.

User Barryku
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