PDA

View Full Version : Chromosomes, Chromatids, Chromatin

Demiwing
Nov28-04, 11:56 PM
Ahh...my classmates are all asking me this. What is the difference between those? Chromosomes is (>) right? Then When they duplicate its sister Chromatids (X)? Then during mitosis anaphase, they get pulled back into (>) correct? Please, someone help confirm. Note: This is not the X, Y thing, but Just how they are shaped. Thanks in advance.

And Chromatin is the collective chromosomes after they are condensed?
Moonbear
Nov29-04, 12:01 AM
Unless I'm missing something glaringly obvious because of the late hour, yes, you have it right.
Monique
Nov29-04, 09:45 AM
That's right, but it's better to visualize a chromosome as | which will duplicate into X which is two sister chromatids connected in the middle.
Moonbear
Nov29-04, 10:20 AM
That's right, but it's better to visualize a chromosome as | which will duplicate into X which is two sister chromatids connected in the middle.

Monique! You're back! We've missed you!

I know using | is the standard way people draw a chromosome, but I actually liked the > notation for illustration here. Besides, I had to stare at the keyboard a bit to figure out where the | key was. :biggrin: I'm not disagreeing with you, just sharing an opinion.
Monique
Nov29-04, 10:32 AM
Yeah, I got confused when I saw the > :tongue2:

I'm still waiting to get an internet connection hooked up to my house, but it shouldn't be too long now anymore *whoohoo* subleasing and sloppy housebosses that don't pay bills :rolleyes: at least I still got gas and heating :wink: for now..
Moonbear
Nov29-04, 10:55 AM
Yeah, I got confused when I saw the > :tongue2:

I'm still waiting to get an internet connection hooked up to my house, but it shouldn't be too long now anymore *whoohoo* subleasing and sloppy housebosses that don't pay bills :rolleyes: at least I still got gas and heating :wink: for now..

Oh, that's right, you just moved. We were starting to think your Prince Charming :!!) swept you away on his white steed and took you to fairy land where we'd never hear from you again. :tongue2:
Monique
Nov30-04, 07:40 AM
That too :wink:
garytse86
Dec5-04, 03:51 PM
Chromosomes
Chromatids - two strands held by centromere that are genetically identical
Chromatin - dark area during interphase when chromosomes have not condensed.
Moonbear
Dec5-04, 09:28 PM
Chromosomes
Chromatids - two strands held by centromere that are genetically identical
Chromatin - dark area during interphase when chromosomes have not condensed.

Read the original post by Demiwing. The answers in that were correct.