Origin of chromosomechromo- + -some
The "X" or "Y" gene that determines whether you will be a boy or a girl is an example of a chromosome.
- A linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.
- A circular strand of DNA in bacteria and archaea that contains the hereditary information necessary for cell life.
- chro′mo·so′mal chro′mo·so′mic
replicated Y chromosome (left) and X chromosome (right) during cell division
19th century: from German Chromosom, ultimately from Ancient Greek χρῶμα (khroma, “colour”) + σῶμα (sōma, “body”) (because they are stained under the microscope).
- I also have a report by Dr. Tartaglia on girls with a chromosome anomaly.
- Maternal uniparental disomy for chromosome 15 leads to PWS because the genes on chromosome 15 that should have been inherited from the father are missing, and the genes on both the chromosome 15s inherited from the mother are imprinted.
- These individuals have had the unfortunate occurrence of a spontaneous mutation, meaning that in their early development, some random genetic accident affected their X chromosome, resulting in the defect that causes hemophilia A or B.
- There is also a type of ocular albinism that is carried on the X chromosome and occurs almost exclusively in males because they have only one X chromosome and, therefore, no other gene for the trait to override the defective one.
- By studying the reading and writing abilities of close to 80 family members across four generations, the researchers reported, for the first time, that chromosome 2 can be involved in the inheritability of dyslexia.