Sex chromosomes are unusually labile systems, with frequent shifts between male and female heterogamety and with a large variety in the precise number and types of chromosomes. The lability is ...

Cincinnati Children's Hospital Medical Center study links regions of two chromosomes to susceptibility for a type of autism characterized by regression in development.

In recent years, scientists have begun to learn more about a type of mutation called chromothripsis that was discovered a few years ago in chronic lymphocytic leukemia. The term chromothripsis ...

While all forms of Down syndrome are associated with an extra full or partial copy of the 21st chromosome, there are a few different types of the condition. Those types are: ...

A new study has found that the X chromosome, of which one copy is typically inactivated in XX female cells, can also be inactivated in some male cancers.