Sex chromosomes of birds as reservoir for jumping genes
Occurring in the genomes of most living organisms, transposable elements (TEs) are short DNA sequences that have the ability change their position. By means of various molecular mechanisms—so-called copy-paste or cut-and-paste—they can 'jump' to.....»»
The true global impact of species-loss caused by humans is far greater than expected, study reveals
The extinction of hundreds of bird species caused by humans over the last 130,000 years has led to substantial reductions in avian functional diversity—a measure of the range of different roles and functions that birds undertake within the environm.....»»
Study identifies compounds that extend longevity of Japanese morning glory flowers
The longevity of plant flowers is controlled by genetically programmed mechanisms. After a certain amount of time after flowering, the expression of genes associated with programmed cell death is induced and cellular components such as proteins and n.....»»
Plants have a backup plan to pass down accurate chromosome copies
Tending a garden is hard work. Imagine it from the plants' perspective. Each relies on fine-tuned genetic processes to pass down accurate copies of chromosomes to future generations. These processes sometimes involve billions of moving parts. Even th.....»»
EEOC sues Stellantis dealership over sex discrimination allegations
Benson Enterprises' Ingram Park Chrysler-Jeep-Dodge-Jeep in San Antonio, allegedly subjected two female employees to unfair treatment and fired one in retaliation......»»
First-ever artificial cell nuclei created in living egg from purified DNA injection
A research group is the first in the world to succeed in constructing artificial cell nuclei by injecting purified DNA solution instead of sperm into living mouse eggs. Their findings are published in the journal Genes to Cells......»»
Research provides new insights into role of mechanical forces in gene expression
The genome inside each of our cells is modeled by tension and torsion—due in part to the activity of proteins that compact, loop, wrap and untwist DNA—but scientists know little about how those forces affect the transcription of genes......»»
Ants might be pushing montane birds higher up, study finds
Mountains are home to 85% of the world's amphibian, bird, and mammalian species, despite covering only 25% of the Earth's surface. This makes them a highly diverse ecosystem and a key focus for conservation efforts......»»
Exploring the role of hydrogen sulfide in the expression of iron uptake genes in E. coli
Antibiotic resistance and oxidative stress response are important biological mechanisms that help bacteria thrive, especially pathogenic bacteria like Escherichia coli. Hydrogen sulfide (H2S), a chemical messenger molecule, regulates several intracel.....»»
The biological marvels of the seabed are being mined to create commercial products—here are the risks
Thousands of genes from deep-sea marine life are being used to create new commercial products ranging from pharmaceuticals to cosmetics. Genes are segments of DNA that provide instructions for making other molecules that are essential for the structu.....»»
On remote Greek island, migratory birds offer climate clues
Gently holding a blackcap warbler in his palm, ornithologist Christos Barboutis blew on its feathers to reveal the size of its belly: a good indicator of how far the bird can migrate......»»
Legendary Mario creator on AI: Nintendo is “going the opposite direction”
Switch-maker shows little interest in jumping on the latest industry bandwagon. Artist's conception of Miyamoto preparing to fend off investors eager for more generative AI integration. (credit: Pop Culture Geek) In the.....»»
Bird study shows that grounded running styles conserve energy
A small team of biologists and animal movement specialists in the Netherlands and the U.K. has found that birds such as the emu have a grounded running style at medium speeds, allowing them to conserve energy compared to the ungrounded running style.....»»
Bacterial "flipping" allows genes to assume different forms
Imagine being one cartwheel away from changing your appearance. One flip, and your brunette locks are platinum blond. That's not too far from what happens in some prokaryotes, or single-cell organisms, such as bacteria, that undergo something called.....»»
"Palm-sized birds" extinct in the wild since 1988 make "monumental" return to island
It's been 35 years since this "cerulean blue and cinnamon" colored bird has flown free in the wild......»»
Naked mole-rat found to have lost infection-resistant proteins
Scientists have found that the naked mole-rat—an underground rodent that lives up to 40 years—has lost a number of CD1 functional genes. The CD1 gene family in mammals is responsible for protein synthesis that protects the body against infectious.....»»
Indigenous outback rangers in WA find up to 50 night parrots, among Australia"s most elusive birds
In arid inland Australia lives one of Australia's rarest birds: the night parrot. Missing for more than a century, a live population was rediscovered in 2013. But the species remains elusive......»»
Compact "gene scissors" enable effective genome editing, may offer future treatment of high cholesterol gene defect
CRISPR-Cas is used broadly in research and medicine to edit, insert, delete or regulate genes in organisms. TnpB is an ancestor of this well-known "gene scissors" but is much smaller and thus easier to transport into cells......»»
"Pirate birds" force other seabirds to regurgitate fish meals. Their thieving ways could spread lethal avian flu
It's not easy finding food at sea. Seabirds often stay aloft, scanning the churning waters for elusive prey. Most seabirds take fish, squid, or other prey from the first few meters of seawater. Scavenging is common......»»
Unlock the Secret of a Gravity-Defying Parkour Stunt—With Physics!
Yes, you really can climb a building by jumping back and forth between two opposing walls. Thank you, Isaac Newton......»»
Greylag geese with similar personalities have higher hatching success, study suggests
Birds of a feather flock together but strong pairing in geese has been shown to produce better breeding results, according to a new study......»»