HOME >> BIOLOGY >> NEWS
People from distant lands have strikingly similar genetic traits, study reveals

Scientists have long recognized that, despite physical differences, all human populations are genetically similar to one another. But a new study in the journal Science concludes that populations from different parts of the world share even more genetic similarities than had previously been assumed.

At the same time, researchers found that tiny differences in DNA can provide enough information to identify the geographic ancestry of individual men and women.

The results of the Dec. 20.Science study the largest of its kind to date have implications for understanding ancient human migrations and for resolving the ongoing debate about the use of ancestry information in medical research, said Marcus W. Feldman, the Burnet C. and Mildred Finley Wohlford Professor in Stanford's School of Humanities and Sciences. Feldman led the international study, which included scientists from the United States, France and Russia.

"Different populations experience different rates of various diseases," Feldman explained. "To determine if someone is genetically susceptible to a particular disease, doctors will sometimes ask a patient, 'What is your ancestry?' But recent studies have raised the question of whether self-reported ancestry is a useful diagnostic tool, or whether it should be abandoned in favor of genetic testing."

The authors concluded that a patient interview can, in fact, provide a useful, less invasive alternative for assessing individual disease risks.

DNA "microsatellites"

In their study, Feldman and his colleagues analyzed DNA samples obtained from 1,056 people from 52 populations in five major geographic regions of the world: Africa, Eurasia (Europe, the Middle East, Central and South Asia), East Asia, Oceania and the Americas.

To identify specific populations, the research team looked for "microsatellites" short segments of human DNA that occur in specific patterns, which are passed
'"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
19-Dec-2002


Page: 1 2 3 4

Related biology news :

1. People with undetermined muscle/bone pain tend to be severely vitamin D deficient
2. Peoples household dynamics crucial to biodiversity
3. People linked to new sea otter diseases
4. People and fire at Floridas wildland-urban interface
5. People with autism and Asperger Syndrome process faces as objects, Yale study of brain abnormalities finds
6. No Link To CJD In People Working With Animals....At Least Not Yet
7. Invading Pests Harm People, Plants And Animals
8. Managing For Deer, Moose, Elk, Wolves -- And People
9. Familial Cancer Syndrome Linked to Colorectal Cancer in Younger People
10. Gene Identified For Heart Defect That Causes Sudden Death In Young People
11. Teaching Great White Sharks To Link People With Food Is A Recipe For Disaster

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/3/2020)... ... , ... Brilliant , the leading smart home control and lighting company, ... for purchase in the U.S., Canada, and Puerto Rico through ADI Global Distribution, a ... to being available for purchase through ADI’s Digital Branch , Brilliant products are ...
(Date:9/3/2020)... YORK (PRWEB) , ... September 03, 2020 , ... ... real world data, today announced that an extensive third-party assessment of the company’s ... and compliant when measured against federal security regulations. The comprehensive evaluation reviewed Litmus’ ...
(Date:8/26/2020)... DIEGO and SHANGHAI (PRWEB) , ... August 24, ... ... pursuing novel approaches for the treatment of chronic inflammatory and fibrotic diseases, today ... Officer and Vice President of Drug Discovery. , Dr. Canan previously served as ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... G-CON Manufacturing, ... its new tagline, “BUILDING FOR LIFE.” The adoption of this taglines comes at ... requiring fast track capacity to provide patients with urgently needed vaccines and other ...
(Date:7/31/2020)... ... July 29, 2020 , ... The ... centers in 16 countries, has reached its 20th anniversary of worldwide use. Introduced ... use at top universities including University of Pennsylvania, University of Michigan, University of ...
(Date:7/18/2020)... Ohio (PRWEB) , ... July 16, 2020 , ... ... data solutions to aid in the early detection and prevention of high-burden diseases, ... to enable US-based hospitals and healthcare organizations to utilize existing data in order ...
(Date:7/10/2020)... ... July 09, 2020 , ... Sentien ... announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as its Chief Medical ... development of Sentien’s lead product, SBI-101. Dr. Nissenson serves as an Emeritus ...
Breaking Biology Technology:
Cached News: