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Artículos sobre Genetic variation

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Conditions in rural England around the turn of the 20th century offer a case study for cultural evolution researchers. Heritage Images/Hulton Archive via Getty Images

English dialects make themselves heard in genes

People with a common history – often due to significant geographic or social barriers – often share genetics and language. New research finds that even a dialect can act as a barrier within a group.
Statistical pitfalls in GWAS can result in misleading conclusions about whether some traits (like long horns or spotted skin, in the case of dinosaurs) are genetically linked. @meanymoo

People don’t mate randomly – but the flawed assumption that they do is an essential part of many studies linking genes to diseases and traits

People don’t randomly select who they have children with. And that means an underlying assumption in research that tries to link particular genes to certain diseases or traits is wrong.
A complete human genome, seen here in pairs of chromosomes, offers a wealth of information, but it is hard connect genetics to traits or disease. HYanWong/Wikimedia Comons

Scientists are on a path to sequencing 1 million human genomes and use big data to unlock genetic secrets

The first full human genome was sequenced 20 years ago. Now, a project is underway to sequence 1 million genomes to better understand the complex relationship between genetics, diversity and disease.
Colourized scanning electron micrograph of a cell heavily infected with SARS-CoV-2 virus particles. (The National Institute of Allergy and Infectious Diseases/Flickr)

Know your target: Fundamental science will lead us to coronavirus vaccines

Fundamental research has informed what we know about coronaviruses up until the pandemic. With possible future outbreaks, continuing and developing this type of work is crucial.
Shutterstock

What we’ve learnt from building Africa’s biggest genome library

Africa is known to be where humans originated. This makes it the most genetically diverse region in the world. Diversity in other populations represents a subset of the diversity within Africa.
As genes are favored or phased out, human evolution continues. ktsdesign/Shutterstock.com

Evolutionary geneticists spot natural selection happening now in people

Comparing genomes of more than 200,000 people, researchers identified genetic variants that are less common in older people, suggesting natural selection continues to weed out disadvantageous traits.
Scientific evidence shows overwhelmingly that people across the world are genetic refugees from Africa. Shutterstock

How science has been abused through the ages to promote racism

Despite science refuting the existence of different human races, people have used “race” throughout history to divide and denigrate certain people while promoting their claims of superiority.

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