Chromosomes, Chromatids, Chromatin

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Discussion Overview

The discussion centers on the differences between chromosomes, chromatids, and chromatin, exploring their definitions and visual representations. Participants engage in clarifying these concepts, particularly in the context of cell division and structure during interphase.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that chromosomes can be visualized as ">" and that when they duplicate, they form sister chromatids represented as "X".
  • Another participant agrees with the visualization but proposes that a chromosome is better represented as "|" which duplicates into "X".
  • A later reply emphasizes that chromatids are two strands held together by a centromere and are genetically identical.
  • Chromatin is described as the dark area during interphase when chromosomes have not yet condensed.

Areas of Agreement / Disagreement

Participants generally agree on the basic definitions and visual representations of chromosomes and chromatids, but there are differing opinions on the best way to illustrate these concepts. The discussion remains somewhat informal and includes personal anecdotes, indicating a mix of agreement and casual debate.

Contextual Notes

Some participants express confusion over the visual representations used, indicating a potential limitation in understanding based on notation. There are also informal remarks about personal situations, which may distract from the technical discussion.

Who May Find This Useful

This discussion may be useful for students or individuals seeking clarification on basic genetic concepts related to cell division and chromosome structure.

Demiwing
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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?
 
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Unless I'm missing something glaringly obvious because of the late hour, yes, you have it right.
 
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 said:
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.
 
Yeah, I got confused when I saw the > :-p

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..
 
Monique said:
Yeah, I got confused when I saw the > :-p

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. :-p
 
That too :wink:
 
Chromosomes
Chromatids - two strands held by centromere that are genetically identical
Chromatin - dark area during interphase when chromosomes have not condensed.
 
garytse86 said:
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.
 

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