By Fakhrul Najmi
The concept of three-parent babies defies what we learned in health class. But how and when is the third parent involved? At what stage? Jennifer Barfield gives us an update on the birds and the bees.
Sunrise at noon in the Arctic. Little exposure to sun was a piece of the genetic puzzle.
Bering Land Bridge National Preserve
Why was one gene mutation that affects hair, teeth, sweat glands and breasts ubiquitous among ice age Arctic people? New research points to the advantage it provided for ancestors of Native Americans.
Vchal / www.shutterstock.com
New research shows just 1% of E. coli bacteria's genetic mutations are lethal.
Watching bacteria and viruses duke it out, evolving to outwit each other.
UC San Diego
A core idea in molecular biology is that one gene codes for one protein. Now biologists have found an example of a gene that yields two forms of a protein – enabling it to evolve new functionality.
As genes are favored or phased out, human evolution continues.
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.
Some animals seem to have missing genes – but the reality is a lot more intriguing.
Gene drives aim to deliberately spread bad genes when invasive species such as mice reproduce.
Colin Robert Varndell/shutterstock.com
Releasing just 100 mice carrying a faulty gene designed to stop them reproducing can remove an entire population of 50,000, a new study shows, paving the way for new eradication efforts.
A young breast-cancer patient in her home.
Two US researchers have traced the majority of cancers to DNA replication errors during our natural cell replacement. Their finding asks for a renewed inquiry into the role of "chance" in cancer.
What can a single person’s flu infection tell you about how the virus changes around the world?
Xue and Bloom
New genetic technologies are letting us look at flu evolution right where it starts: within individual people, while they're sick.
Listening to audio derived from DNA may help scientists better understand how cell biology works.
Converting a DNA sequence into an audio could help us learn something useful about it, like where mutations occur.
Laboratory mice are among the first animals to have their diseases treated by CRISPR.
tiburi via Pixabay.com
A new research paper reports dangerous side effects in CRISPR-edited mice. Some scientists are pushing back, placing blame for the unwanted mutations on the experiment, not the technique.
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.
Scientists found that malaria parasites resistant to antimalarial Atovaquone cannot survive inside their mosquito host.
Resistance to a commonly used antimalarial medication, Atovaquone, can’t spread to the general human population, a new research found.
Understanding how evolution affects behaviour can help address societal problems.
Evolution also does not claim humans evolved from primates. Neither does it say non-human primates, including monkeys, baboons, chimpanzees and gorillas, will evolve into humans with time.
You’d be in bad shape if your cells couldn’t fix DNA issues that arise.
Cells must repair the thousands of bits of DNA damage they incur every day. These cellular mechanisms fend off cancerous tumors, and cancer researchers are working to harness their power.
Genetic therapy might be able to reverse the harmful effects of sickle cell anaemia.
Gene therapy is allowing us to switch on natural beneficial mutations to counteract the effects of negative mutations in diseases such as sickle cell anaemia.
The genetic modification of humans make many people feel very uncomfortable.
The first case of genetically engineering a human embryo to cure a congenital disease is a technical breakthrough but raises troubling ethical questions.
Won’t get fooled again (posed by models).
twins by iofoto/www.shutterstock.com
DNA profiling is a powerful tool, but being faced with identical DNA from identical genes has been a problem - until now.
British researchers have developed a new way of tracing the life history of individual cells back to their origins in the…