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Author Question: A couple has a child with Down syndrome. The mother is 39 years old at the time (Read 1144 times)

Hungry!

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on: Jun 21, 2013
A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition?
A) The woman inherited this tendency from her parents.
B) One member of the couple carried a translocation.
C) One member of the couple underwent nondisjunction in somatic cell production.
D) One member of the couple underwent nondisjunction in gamete production.
E) The mother had a chromosomal duplication.


camila

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Reply #1 on: Jun 22, 2013
100% it's D, don't forget to gimmi a thumbs up :D


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Hungry!

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Reply #2 on: Aug 13, 2013
Thanks so much, you were right on.


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