Understanding through Discussion

Welcome! You are not logged in. [ Login ]
EvC Forum active members: 75 (9011 total)
72 online now:
(72 visitors)
Newest Member: Burrawang
Upcoming Birthdays: Coragyps, DrJones*
Post Volume: Total: 881,621 Year: 13,369/23,288 Month: 299/795 Week: 0/95 Day: 0/28 Hour: 0/0

Thread  Details

Email This Thread
Newer Topic | Older Topic
Author Topic:   Evolving New Information
Member (Idle past 600 days)
Posts: 4519
From: VA USA
Joined: 12-05-2005

Message 9 of 458 (507130)
05-01-2009 6:18 PM
Reply to: Message 8 by pandion
05-01-2009 5:23 PM

As pointed out later, it depends on the proteins produced. However, in one of the most famous and documented cases of evolution by natural selection, the mutation was immediately apparent. The first notice of a dark morph in the Peppered moth (Biston betularia) was in 1848. Until then all observed moths had been of the light-speckled variety. From then until 1895 the percentage of dark morphs increased until it had reached 95% in polluted areas. As pollution was reduced during the last half of the 20th century, the number of dark morphs also declined.

My point here is that the dark morph (called carbonaria) was caused by a single point mutation. The mutation and the gene has been identified. The mutated gene is dominant. Thus, heterozygous moths are dark.

Should we regard that as evidence that humans descended from ape like animals over millions of years?

This message is a reply to:
 Message 8 by pandion, posted 05-01-2009 5:23 PM pandion has responded

Replies to this message:
 Message 10 by Blue Jay, posted 05-01-2009 6:24 PM jaywill has not yet responded
 Message 11 by pandion, posted 05-01-2009 7:03 PM jaywill has not yet responded

Newer Topic | Older Topic
Jump to:

Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2020