New DNA analysis revealed that Calvin Hoover killed Christine Jessop in 1984. Toronto Police Chief James Ramer sits next to a screen displaying photos of Calvin Hoover during a news conference on Oct. 15, 2020.
THE CANADIAN PRESS/Chris Young
Christine Jessop was murdered in 1984 and, 36 years later, DNA evidence finally identified her killer. But the police investigation's use of genetic genealogical databases raised questions about privacy.
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A thousand-year-old "mixing" event allowed African cattle - after spending thousands of years confined to certain regions - to diversify and spread.
Scientists are revealing the extent to which our behaviour is influenced by our genes, calling into question our capacity for free will. But there is still scope for change.
Jennifer Doudna and Emmanuelle Charpentier have been awarded the Nobel prize in Chemistry for their revolutionary work on 'gene scissors' that can edit DNA.
CRISPR enables editing DNA with unprecedented precision.
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Most scientific discoveries these days aren't easily ascribed to a single researcher. CRISPR is no different – and ongoing patent fights underscore how messy research can be.
A new finding in mice rewrites the textbook explanation of the male sex-determining gene, Sry. It might also help us better understand how males and females come to be.
Fluorescent human cells seen through a microscope.
Our cells may be small, but they are mighty. And they are made of lots of amazing stuff, from the DNA that tells your body how to grow, to mini skeletons that let cells move around.
Researchers are working on handheld devices that can signal the presence of SARS-CoV-2 in the air.
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Miniaturized laboratory equipment is making it easier to identify airborne pathogens in the field, but there's still work ahead to be able to instantly determine if a room is safe or contaminated.
New Chrysaora from the coast of South Africa.
Global long-term data simply doesn't exist for jellyfish, so scientists struggle to predict, track and mitigate their potential effects.
The polymerase chain reaction, or PCR, is used to copy strands of DNA.
COVID-19 tests rely on a process developed at a biotech company co-founded by a Canadian. Canada’s current testing expertise needs to be channelled to prepare for the next wave, and the next pandemic.
Rosalind Franklin at age 25.
Elliott & Fry/© National Portrait Gallery, London
Franklin was born a century ago, and her X-ray crystallography work crucially contributed to determining the structure of DNA.
The neighbourhood a child grows up in may influence their health for years to come by changing the activity of their genes.
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This decades-long study found that living in poorer communities changes how genes are regulated.
Specimens like these at Dublin’s Natural History Museum contain valuable information about the evolution of pathogens and host organisms.
Genetic information that could help finger the next infectious threat is stored in museums around the world.
A coronavirus vaccine is coming, but when?
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Vaccine development is usually a long process. The coronavirus pandemic is forcing researchers to innovate and test potential vaccines faster than ever before.
If we are not careful, the coronavirus pandemic could lead to a rise in xenophobic attitudes.
It seems as though every other day we're told a cure has been found for coronavirus. This is not strictly true – but there are some therapeutic options showing promise.
There are many ways to make a vaccine. In a time of crisis, the more paths towards success the better.
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Under pressure to develop a coronavirus vaccine, researchers have turned to protein synthesis, genetics and hybrid viruses. It is likely a mix of these approaches will be used to fight the coronavirus.
The origin of the Covid-19 virus is still unclear: a cave, the forest…
The SARS-CoV-2 virus responsible for the COVID-19 pandemic is undergoing extensive genetic analysis around the world to understand its origin and evolution.
It might protect thousands of people.
The U.S. has been scrambling to get testing for the coronavirus up to speed.
AP Photo/Francois Mori
A molecular biologist explains who should get tested, how the tests work and what the US government is doing to make tests available during a rapidly changing crisis.