When a cell divides, mitochondria are randomly allotted to the resulting new cells.
Odra Noel. Wellcome Images
The genes in our cells' mitochondria are passed on in a different way than the vast majority of our DNA. New studies shed light on how the unique process isn't derailed by mutations.
Roughly 10 per cent of the population is left-handed, like President Barack Obama, seen here signing the guest book on Parliament Hill in Ottawa in June 2016.
THE CANADIAN PRESS/Justin Tang
Handedness is the tendency to prefer using one hand over the other to perform certain tasks. But how did we get this way?
A scientist works with DNA samples in a New Orleans laboratory in 2011.
(AP Photo/Gerald Herbert)
The rapid growth of genetic testing and data-gathering could revolutionize health and medicine if governments work to protect people against privacy and societal risks.
With all these ‘test-tube babies’ grown up, how have our reactions to the technology evolved?
AP Photo/Alastair Grant
Americans have moved on from worrying about ‘test-tube babies’ – but there are still ethical challenges to resolve as reproductive technologies continue to advance.
There’s still a way to go from editing single-cell embryos to a full-term ‘designer baby.’
The news may have come as a surprise, but it probably shouldn't have. A bioethics expert walks through how big a deal this announcement is – and what we should be considering now.
Our cells have a built-in genetic clock, tracking time… but how accurately?
Stopwatch image via www.shutterstock.com.
How do scientists figure out when evolutionary events – like species splitting away from a common ancestor – happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.
Unravelling the common assumption that runners from Kenya, Ethiopia and Somalia have a natural advantage.
DNA Nation raises questions of genetics, identity and race.
The SBS documentary DNA Nation tracks three people on their 'individual genetic journey'. But for Indigenous Australians in particular, genetic testing is a can of worms - politically, ethically and technically.
People get suspicious when ethically fraught science is discussed behind closed doors.
DNA image via www.shutterstock.com.
A recent closed meeting about building synthetic genomes raised suspicions about just what scientists were planning, away from the public eye.
Study finds that gene linked to risk-taking is associated with losing your virginity early.
Research on how our lifestyles affect our genes raises the possibility of giving your future kids a better start in life before they're even born.
A family migrating to western US in 1886.
Humans evolved in Africa, spread across the world, and then it gets messy. Luckily advances in genetic sequencing have helped us track the complex history of human migration.
A DNA string. The genomic revolution is upon us.
The discovery made by three Nobel Prize winning chemists is one of biology's most important safeguards against imperfection in DNA.
The 1000 Genome Project is comparing the genomes of thousands of people from around the world.
The 1000 Genome Project has revealed the genetic variations that exist among people around the world, and discovered that some people are missing many genes.
US row might suggest using feotal tissue is new - in fact it's not only a long-held practice, but essential for many medical breakthroughs.
Slurp and thank the Yamnaya.
Samantha Jade Royds/Flickr
Study sheds light on how have traits that were rare in African ancestors became common in Europe.
Dads in Paris.
Genetic study reveals that two-thirds of European men can be traced back to just three individuals who lived between 3,500 and 7,300 years ago.
Mum’s gone to Iceland.
The traditional picture of Vikings is one of boatloads of hairy men pillaging their way along the coasts of Europe. Though true to some degree, this stereotype has more recently been tempered with the…
Harking back to the diet of the caveman.
We still hear and read a lot about how a diet based on what our Stone Age ancestors ate may be a cure-all for modern ills. But can we really run the clock backwards and find the optimal way to eat? It’s…
The human Y chromosome has retained only 3% of its ancestral genes. So why’s it a shadow of its former self?
Rafael Anderson Gonzales Mendoza/Flickr
The Y chromosome, that little chain of genes that determines the sex of humans, is not as tough as you might think. In fact, if we look at the Y chromosome over the course of our evolution we’ve seen it…