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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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nite_n_day nite_n_day
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10 years ago
Although the most frequent forms of Down syndrome are caused by a random error, nondisjunction of chromosome 21, Down syndrome occasionally runs in families. The cause of this form of familial Down syndrome is ________.
A) an inversion involving chromosome 21
B) a chromosomal aberration involving chromosome 1
C) too many X chromosomes
D) a translocation between chromosome 21 and a member of the D chromosome group
E) a maternal age effect

Our teacher assigned this from our Essentials of Genetics book
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Would you know my name, if I saw you in heaven?

Eric Clapton
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germgerm
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10 years ago
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nite_n_day Author
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#2
10 years ago
This answer was perfect, thanks. It's a pleasure being a member of this forum.
Would you know my name, if I saw you in heaven?

Eric Clapton
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#3
9 years ago
You're welcome.

Bye for now.
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