Genetics

A map of DNA with the double helix colored blue, the landmarks in green, and the start points for copying the molecule in red. David Gilbert/Kyle Klein, CC BY-ND

New Nanotechnology Imaging Technique Sheds Light on DNA Structure

The new technology could help pinpoint how errors occur in DNA replication, which can cause cancer and other diseases

"I certainly see ourselves moving in a direction where conception through sex will come to be seen as natural, yet dangerous," says Metzl.

How To Prepare for a Future of Gene-Edited Babies—Because It's Coming

In a new book, futurist Jamie Metzl considers the ethical questions we need to ask in order to navigate the realities of human genetic engineering

Three generations of the Marsili family at home in Siena, Italy. From left: Maria Elena; Letizia and her son Ludovico; matriarch Maria Domenica.

The Family That Feels Almost No Pain

An Italian clan's curious insensitivity to pain has piqued the interest of geneticists seeking a new understanding of how to treat physical suffering

A World War I Soldier's Cholera Seemed Odd. 100 Years Later, Researchers Have Sequenced His Bacteria's Genome

The cholera bacteria in his body may not have even been the cause of his symptoms after all, the new analysis found

Identical twin astronauts, Scott and Mark Kelly, are subjects of NASA’s Twins Study. Scott (right) spent a year in space while Mark (left) stayed on Earth as a control subject.

NASA's Study of Astronaut Twins Creates a Portrait of What a Year in Space Does to the Human Body

Wide-ranging research compares astronaut Scott Kelly to his earthbound twin brother, Mark

Polish soldier and military commander Casimir Pulaski (1745 - 1779), circa 1775. From an original engraving by James Hopwood after a painting by Oleszkiewicz.

Was the Revolutionary War Hero Casimir Pulaski Intersex?

A new Smithsonian Channel documentary may affirm long-standing suspicions about the Polish fighter’s identity

Mosquitoes Can Smell Your Sweat

Researchers have identified a receptor in <i>Aedes aegypti</i> mosquitoes that detect lactic acid and other compounds in human sweat

At 8, Jo Cameron broke her arm and didn't tell anyone for days because she didn't notice. Decades later her doctors found she had osteoarthritis by chance and she underwent surgery to remove the bone in her hand. A few drug store pain killers was all she need to ease her pain.

A Scottish Woman Doesn’t Feel Pain or Stress. Now Researchers Think They Know Why

Genetic analysis revealed that Jo Cameron has a previously unidentified mutation that may affect pain relief, memory and mood

Ewe can't hurry love.

Healthy Baby Lambs Born Using World's Oldest Sperm

Ram semen survived 50 years frozen in liquid nitrogen, matched insemination success rate of sperm frozen for just one year

Archaeologists from the Maryland Department of Transportation State Highway Administration found this 19th-century clay pipe at the excavation site that contained the DNA of a woman who had connections to the region that is now modern-day Sierra Leone.

DNA From 200-Year-Old Pipe Links Enslaved Woman to Sierra Leone

A new genetic analysis suggests that certain artifacts can help descendants of enslaved people piece together their ancestral heritage

One of a series of images from the Illustrated London News for October 13, 1888 carrying the overall caption, "With the Vigilance Committee in the East End".

No, We Still Cannot Confirm the Identity of Jack the Ripper

The case for the unmasking is tied to a shawl alleged to have been found next to Ripper victim Catherine Eddowes, but its provenance is uncertain

Astrobatrachus kurichiyana, also known as the "starry dwarf frog," has only been found on a single hill range in India's Western Ghats.

Newly Discovered Starry Dwarf Frogs Are Lone Species of an Ancient Lineage

The newly discovered ‘oddball frog’ species dwells in India’s Western Ghats, one of the hottest of the biodiversity hotspots

A drinking horn made from the horn of an aurochs bull.

Testing the DNA in Museum Artifacts Can Unlock New Natural History, but Is it Worth the Potential Damage?

Museums house a wealth of rare animal specimens, such as arctic clothing, medieval parchment and Viking drinking horns, but DNA testing can be destructive

In theory, all you’d need to do is give a blood sample and his test would indicate whether you have allergies to a certain substance or not.

Teen Inventor Designs Noninvasive Allergy Screen Using Genetics and Machine Learning

Seventeen-year-old Ayush Alag is one of 40 finalists in this year’s Regeneron Science Talent Search

The "London patient" stopped taking his anti-H.I.V. drugs 18 months ago and has been in remission ever since

H.I.V. Has Reportedly Been 'Cured' for Only the Second Time Ever

A London man is in long-term remission following a successful bone marrow stem cell transplant

Kitten-sized Lil Bub has extra toes on each paw, no teeth and an undersized jaw that makes her tongue perpetually stick out

Genome Sequencing Offers Clues About Celebrity Cat Lil Bub’s Unusual Appearance

Researchers identified the mutations responsible for the tabby’s extra toes, tiny stature

Illustration shows two sperm fertilizing an egg.

Doctors Identify Very Rare ‘Semi-Identical’ Twins

There is only one other known case of this unusual type of conception, which happens when an egg is fertilized by two sperm

Computer technician Joyce Cade works on a UNIVAC computer at a United States Census Bureau installation in Maryland which was used to tabulate the results of the 1954 Census of Business.

Women's Contributions to Early Genetics Studies Were Relegated to the Footnotes

While women scientists were frequently "acknowledged programmers" in population genetics research, few of them received full authorship

The complicated tree of human evolution could include extinct species that have not yet been discovered.

Artificial Intelligence Study of Human Genome Finds Unknown Human Ancestor

The genetic footprint of a "ghost population" may match that of a Neanderthal and Denisovan hybrid fossil found in Siberia

Scientists studying bacteria in the gut continue to find evidence of the role these organisms play in human health.

Scientists Find a Possible Link Between Gut Bacteria and Depression

A new study identifies bacteria in the microbiome that could produce neurotransmitters and potentially influence activity in the brain

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