Home | Community | Message Board

Please support our sponsors.

General Interest >> Science and Technology

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Jump to first unread post. Pages: 1
Got a Wick
Registered: 06/17/05
Posts: 19
Last seen: 12 years, 4 months
Gene Variation Implies evolving Brain
    #4639513 - 09/09/05 10:13 PM (12 years, 8 months ago)

Scientists have discovered a gene variation, perhaps involved in brain size, that showed up only 6,000 years ago a mere blink of the eye in evolutionary time.
This Discover, along with another brain gene that arrive about 37,000 years ago, providing scientists with strong evidence that the human brain is still a work in proecess..

"Its very exciting stuff" said Henry Harpending, a professor of anthropology at the University of Chicago, and appears today in the Journal Of SCIENCE.

Analyzing DNA samples from individuals aroundthe world, they identified two genetic varieties unique to humans. One, Calls Abnormal indle-like mucrocephialy or ASPM, First appeared 6,000 years ago and is now found in 30 percent of the polpulation... The other, called mircroceohalin, evolved aboiut 37,000 yrs ago and has spread to more than 70 percent of the polpulation....

"We dont know what the new variants do," Lahn Said, "But they might confer a selective advantage by improving cognitive abilities. This needs to be confirmed."

The scientists estimate the first sightings of these genes by calculating the slight differences among indivisuals in the populations studies. Lahn Likes it to the vast array of Bibles that probaly descended from a single copy. Over time, revisions can lead to errors or intentional chanes in the content.. The scientists assume a certain rate of change over time, and that is how they find their way to to ancestral gene.

While the first moderns humans date back to 200,000 yrs ago, our closest human ancestors, ones with shared human behavior, probaly evolved abour 40,000 yrs ago

People with damage to either of these two genes have smalle brains, equal in size to chimp brains..

Post Extras: Print Post  Remind Me! Notify Moderator
Registered: 06/27/05
Posts: 382
Re: Gene Variation Implies evolving Brain [Re: lightemup]
    #4644270 - 09/11/05 01:38 AM (12 years, 8 months ago)

very interesting. i wonder how our current ignorant mindset will effect future brain evolution.

I'll see you down in Guantanamo Bay

Donate spores to FSRC or suffer the consequences!*


Overgrow has been shut down :sad: check out www.icmag.com if you need MJ info

*consequences may or may not be suffered

Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

General Interest >> Science and Technology

Similar ThreadsPosterViewsRepliesLast post
* A Gene may affect IQ in Males asd11 585 2 04/28/06 04:25 AM
by Darcho
* WHY has life evolved?
( 1 2 3 4 5 6 all )
RebelSteve33 12,035 112 11/12/06 12:43 AM
by Ravus
* Humans Are Evolving More Rapidly Than Thought Possible DiploidM 1,640 13 04/12/06 11:08 AM
by defcheck
* Scientists create super mice that regenerate lost limbs. Are super humans next?
( 1 2 all )
SkorpivoMusterion 2,124 22 10/06/05 08:13 PM
by RuNE
* Shyness May Be in the Genes
720 3 06/10/05 11:06 PM
by vampirism
* Big Bang Theory Busted By 33 Top Scientists
( 1 2 all )
FrankieJustTrypt 4,223 27 08/07/11 01:17 AM
by cortex
* Build an Electronic Brain Stimulator
( 1 2 all )
micro 10,061 25 08/02/04 08:51 AM
by phalloidin
* Non-sex genes 'link to gay trait' daussaulit 1,303 13 02/02/05 06:20 AM
by Clark

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Lana, trendal, automan
611 topic views. 0 members, 3 guests and 1 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
Please support our sponsors.

Copyright 1997-2018 Mind Media. Some rights reserved.

Generated in 0.036 seconds spending 0.011 seconds on 19 queries.