News tagged with genetic differences


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Search results for genetic differences


Sex-based prenatal brain differences found

Medicine & Health / Psychology & Psychiatry

created Oct 23, 2009 | popularity 4.5 / 5 (4) | comments 0

Prenatal sex-based biological differences extend to genetic expression in cerebral cortices. The differences in question are probably associated with later divergences in how our brains develop. This is shown by a new study ...


Color differences within and between species have common genetic origin

Biology / Plants & Animals

created Oct 22, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest ...


A chimpanzee

New evidence of culture in wild chimpanzees

Biology / Plants & Animals

created Oct 22, 2009 | popularity 5 / 5 (6) | comments 1

A new study of chimpanzees living in the wild adds to evidence that our closest primate relatives have cultural differences, too. The study, reported online on October 22nd in Current Biology shows that neighb ...


Altruism: Genetic or Cultural Evolution?

Other Sciences / Social Sciences

created Oct 23, 2009 | popularity 3.9 / 5 (9) | comments 8

(PhysOrg.com) -- The origins of altruism, the willingness to make personal sacrifices for the benefit of others often unknown to us, has perplexed evolutionary social scientists and biologists for years.


The importance of grandmothers in the lives of their grandchildren

The importance of grandmothers in the lives of their grandchildren

Biology / Evolution

created Oct 29, 2009 | popularity 4 / 5 (3) | comments 3

(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...


Africa's rarest monkey had an intriguing sexual past, DNA study confirms

Africa's rarest monkey had an intriguing sexual past, DNA study confirms

Biology / Plants & Animals

created Nov 11, 2009 | popularity 4.7 / 5 (7) | comments 0

The most extensive DNA study to-date of Africa's rarest monkey reveals that the species had an intriguing sexual past. Of the last two remaining populations of the recently discovered kipunji, one population ...


Darwin's mockingbirds DNA research may help species recovery

Darwin's mockingbirds DNA research may help species recovery

Biology / Evolution

created Nov 18, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- New research could help protect the future of a rare bird in the Galapagos Islands that was an inspiration for Darwin’s theory of evolution by natural selection, scientists report in a paper ...


curly hair

Single gene may cause curly hair

Medicine & Health / Genetics

created Nov 10, 2009 | popularity 4.4 / 5 (8) | comments 0

(PhysOrg.com) -- Scientists in Australia have identified a single gene that strongly influences whether you have curly or straight hair.


Bacteria 'invest' wisely to survive uncertain times, scientists report

Bacteria 'invest' wisely to survive uncertain times, scientists report

Biology / Cell & Microbiology

created Nov 02, 2009 | popularity not rated yet | comments 0

Like savvy Wall Street money managers, bacteria hedge their bets to increase their chances of survival in uncertain times, strategically investing their biological resources to weather unpredictable environments.


Scientists unlock clues for tailoring corn plant for food, energy needs

Biology / Biotechnology

created Nov 19, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Scientists have long known that the offspring of two inbred strains tend to be superior to both their parents. Now, a team of researchers including a University of Florida geneticist has discovered clues ...



List of search results for genetic differences