Register | Sign In


Understanding through Discussion


EvC Forum active members: 64 (9164 total)
6 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,844 Year: 4,101/9,624 Month: 972/974 Week: 299/286 Day: 20/40 Hour: 1/3


EvC Forum ⇒ Science Forums ⇒ Biological Evolution ⇒

Is DNA the TOTAL Instruction Set for a Lifeform?

Thread ▼ Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Is DNA the TOTAL Instruction Set for a Lifeform?
NosyNed
Member
Posts: 9004
From: Canada
Joined: 04-04-2003

Normal Thread Display
Message 20 of 70 (536691)
11-24-2009 2:15 PM 		Reply to: Message 16 by Elhardt
11-23-2009 7:42 PM

Shape Data
. Where exactly is the "3D geometry data" that defines for example, the shape of your skull, located? If cells need to differentiate themselves into structures like that, where is that specified? Sounds like membrane patterns and microtubule arrays according to Wells. But if those only come about under DNA control, then it's back to the DNA. But DNA doesn't hold "shape data" does it?
​
You are correct, DNA doesn contain any "shape data". Nor does the recipe for cookies contain any "shape data" but they acquire a pretty specific shape anyway. DNA simply (ha! simple not so much ) describes the chemicals which will be mixed. The results of the chemical reactions produces shapes but the shape isn't specified like it is in a blueprint -- the shape is what emerges when you do the chemistry.
This message is a reply to:
 Message 16 by Elhardt, posted 11-23-2009 7:42 PM Elhardt has not replied
  
Date format: mm-dd-yyyy
Timezone: ET (US)
  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024