God & Science Forum Message | |
| Forums: |
Atm ·
Astrophotography ·
Blackholes ·
Blackholes2 ·
CCD ·
Celestron ·
Domes ·
Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem |
|
|
|
|
||||
|
|
||||||
Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place... The Space and Astronomy Agora |
| How Identical Are Identical Twins?
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Alexander on October 3, 2001 19:34:08 UTC |
First, their DNA has about 10^10 bases - it is highly unlikely that it is EXACTLY identical. Second, each body has about 10^12 cells (each with 10^10 bases of DNA) and again it is practically impossible to have EXACTLY IDENTICAL DNAs in all of them. In fact, mutation rate only during replication of DNA (=error of copying) is about 10^-6 - 10^-7, meaning that about 1000-10000 bases in a copy are DIFFERENT than in original. Small, but visible change with each replication. |
|
| Additional Information |
|---|
 |
| About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy |
|
Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" are trademarks of John Huggins |