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Chapter 15

Question:

What is the source of the extra chromosome 21 in an individual with Down syndrome?

A) Nondisjunction in the mother only

B) Nondisjunction in the father only

C) Duplication of the chromosome

D) Nondisjunction or translocation in either parent

E) It is impossible to detect with current technology



Answer:

D) Nondisjunction or translocation in either parent



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Last update by mayur on 03/27/2014
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Chapter 15
Chapter 15
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Question: What is the source of the extra chromosome 21 in an individual with Down syndrome? A) Nondisjunction in the mother only B) Nondisjunction in the father only C) Duplication of the chromosome D) Nondisjunction or translocation in either parent E) It is impossible to detect with current technology
Answer: D) Nondisjunction or translocation in either parent