A member asked:

What is the difference between a mutation and a chromosomal abnormality?

A doctor has provided 1 answer
Dr. Nikolaos Zacharias answered

Specializes in Maternal-Fetal Medicine

Size.: Mutations are strategically placed minute changes in dna that change the message encoded in it to produce abnormal proteins and pathological symptoms. Chromosomal abnormalities (e.g. Down syndrome), are larger changes in the number of dna packages (chromosomes) each cell carries, so that many organ systems malfunction (brain, heart, bone marrow, etc).

Answered 8/17/2012

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