Source: Karyotype; Public Domain: http://en.wikipedia.org/wiki/File:NHGRI_human_male_karyotype.png Other image created by Nathan Lampson
Looking at the number of chromosomes and their characteristics under a microscope, this is a critical tool in assessing genetic disorders in a developing embryo.
Sequences of nucleotides are repeated multiple times, they haven’t been linked to disorders, but have been linked to cancers.
A chromosome abnormality that occurs when nonhomologous parts rearrange and fuse together.
A genetic disorder caused by the deletion of a section of the 5th chromosome; cri-du-chat is French for “cry of the cat”. Cri-du-chat causes physical and cognitive abnormalities.
When part of a chromosome is deleted; sometimes it may not have any effect while other times it does.