Which type of chromosome mutation is responsible for familial Down syndrome?
A)Disomy
B)Inversion
C)Nondisjunction
D)Polyploidy
E)Translocation

Question

Quizplus · Accepted Answer

Familial Down syndrome is caused by a translocation of a segment of chromosome 21 onto another chromosome. This results in three copies of chromosome 21 in some cells, causing the characteristic features of Down syndrome.

Which Type of Chromosome Mutation Is Responsible for Familial Down