|Prep for USMLE|
|         Forum      |     Resources||New Posts   |   Register   |   Login||»  |
What is the mechanism by which the X chromosome gets innactivated in Turner's syndrome?
turners is 45,XO
All but one X chromosomes r inactivated (lyonisation)
if just one X is present it is not going to be activated
however, if turners is due to loss of short arm of one X or mosaicism
i.e 45 XO/46XX, then one X is inactivated in cells with 46XX
I see ur point mash but I think what they were asking is that "how come in a pt. with turner's one X-some was deleted, therefore ending up with only 1 X. And what was the mechanism by which this X was gone?
My biochem teacher mentioned something like.....condensation of the material on that X chromosome :arrow: heterochromatin :arrow: non-transcribable :?
RING CHRMOSOME AUTOLYSIS
This thread is closed, so you cannot post a reply.
| Similar forum topics|
Rate dependent channel inactivation
| Related resources|
Advertise | Support | Privacy | TOS | Premium | Contact