DNA replication is a tightly regulated process that ensures the precise duplication of the genome during cell proliferation. Replication origins determine where replication starts on the genome and regulate the whole genome replication program. The human genome contains tens...
In this age of "big data," artificial intelligence (AI) has become a valuable ally for scientists. Machine learning algorithms, for instance, are helping biologists make sense of the dizzying number of molecular signals that control how genes function. But...
Researchers at LSTM have identified a completely new mechanism by which mosquitoes that carry malaria are becoming resistant to insecticide. After studying both Anopheles gambiae and Anopheles coluzzii, two major malaria vectors in West Africa, they found that a particular...
Make some room in the garden, you storied three sisters: the winter squash, climbing beans and the vegetable we know as corn. Grown together, newly examined "lost crops" could have produced enough seed to feed as many indigenous people...
Only percent of human DNA codes for proteins, and approximately half of the rest of the genome is made up of what used to be called "junk" sequences that can copy themselves into RNA or DNA and jump from...
A fundamental problem for biology is explaining how life evolved. How did we get from simple chemical reactions in the prebiotic soup, to animals and plants? A key step in explaining life is that about 4 billion years ago, all...
Using human blood cells, Brazilian researchers have obtained hepatic organoids ("mini-livers") that perform all of the liver's typical functions, such as producing vital proteins, storing vitamins and secreting bile, among many others. The innovation permits the production of hepatic...
Taking advantage of powerful advances in CRISPR gene editing, scientists at the University of California San Diego have set their sights on one of society's most formidable threats to human health. A research team led by Andrés Valderrama at UC...
Mitochondria, tiny structures present in most cells, are known for their energy-generating machinery. Now, Salk researchers have discovered a new function of mitochondria: they set off molecular alarms when cells are exposed to stress or chemicals that can damage...
The motivations for using biology as inspiration to engineering vary based on the project, but for Ling Li, assistant professor of mechanical engineering in the College of Engineering, the combination of flexibility and protection seen in the chiton mollusk...
Proteins are the building blocks of life and play a key role in all biological processes. Understanding how they interact with their environment is therefore vital to developing effective therapeutics and the foundation for designing artificial cells. Researchers at the...