Health

Question the "experts" sometimes....

Gene ExpressionBy Razib KhanOct 17, 2006 8:04 PM

Newsletter

Sign up for our email newsletter for the latest science news
 

This is the shape of things to come for mankind is an article which claims that "Variations in skin colouring are expected to be smoothed out, with most humans moving towards a brown tone." The source of this is an evolutionary psychologist, Dr. Oliver Curry, but, it seems to me that Dr. Curry is passing off what he read in science fiction as science.

Genetics is not blending

. I have posted on skin color enough to make clear why humans won't turn uniformly as beautifully brown as some privileged people! A small number of loci (4-5) control skin color variation, and though random mating can reduce the multi-modality (so "peaks" of light and dark skin may diminish) the variation will be maintained beacuse genetic information is not destroyed, and the alleles which result in dark and light skin will still remain extant in the genetic background. So perhaps all the rest about 6' 6" males and mega-cocks might be viewed with some caution (correlated response anyone?). Update: Wilkins offers his Australian dollar (i.e., 2 American cents).

1 free article left
Want More? Get unlimited access for as low as $1.99/month
Already a subscriber? Log In or Register
1 free articleSubscribe
Want unlimited access?

Subscribe today and save 70%

Subscribe

Already a subscriber? Log In or Register
More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 70% off the cover price when you subscribe to Discover magazine.

Copyright © 2021 Kalmbach Media Co.