From The School of Biomedical Sciences Wiki
Jump to navigation
Jump to search
|
|
| Line 1: |
Line 1: |
| <u>'''Centromeres'''</u> | | <u></u>See [[Centromere|Centromere]] |
| | |
| A centromere is the part of a chromosome that joins two chromatids together, without them, cells cannot divide properly and mitosis could not occur, preventing cell replication.
| |
| | |
| Although part of the chromosome the centromere itself is a section of noncoding DNA and contains no genetic information.
| |
| | |
| | |
| '''Function'''
| |
| | |
| Centromeres contain kinetochores, these are the regions of the centromere that attach chromosomes to the spindles, seperating the chromosomes, during prophase of mitosis
| |
| | |
| | |
| '''Postion<br>'''They can vary on postion on the chromosome, being in the center (metacentric) or creating long and short arms if appearing slightly towards one end (submetacentric), <br>almost at the end (acrocentric) or joining the end of<span id="fck_dom_range_temp_1321296215295_742" /> the chromatids (telocentric).
| |
| | |
| When creating ''[[karotypes|karyotypes]], ''the postion of the centromere is used to find matching pairs, as it can be very specific.
| |
Latest revision as of 09:51, 20 November 2011