genes

Humans May Be Slowly Losing Their Sense of Smell, New Study Hints

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Humans’ sense of smell may indeed be gradually fading, according to a study that has found people carry different versions of two scent receptors for musk and body odor. Olfactory receptors detect airborne chemicals that waft into our noses, but smell receptors vary immensely from one person to the next.   Any two people, on … Read more

A Strange Creature Discards Genes to Make a Better Heart

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As far as sea squirts and their close relatives go, the genus Oikopleura represents a decidedly strange group of organisms, both from the standpoint of physical attributes and genetics. It belongs to a larger group of invertebrate animals that are closely related to all vertebrates: the tunicates. But unlike most others in that group, it … Read more

There’s a Bunch of Bacteria Having ‘Sex’ in Your Gut, And It’s Wilder Than We Thought

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The human gut is the host of a rampant microscopic orgy. To survive, the microbes in our digestive tract are having ‘sex’ with each other on a regular basis, all in the name of swapping secrets on how to survive deadly doses of antibiotics.   A team of researchers from the University of Illinois at Urbana-Champaign … Read more

This Extremely Toxic Lake Could Show Us How Life May Have Survived on Mars

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The search for life on Mars is not an easy one. Not only is the red planet difficult to get to, it’s deeply inhospitable to life as we know it. However, there are places on Earth that could show us how life may have been able to survive on Mars – if not now, then … Read more

Wolves Already Had The Genetic Mutation to Turn Into Tiny Dogs 54,000 Years Ago

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One of the main genetic mutations responsible for small size in certain dog breeds, such as Pomeranians and Chihuahuas, evolved in dog relatives long before humans began breeding these miniature companions. Researchers discovered that the mutation can even be traced back to wolves that lived more than 50,000 years ago.   Researchers discovered the mutation, which is found in … Read more

Whiteflies have acquired dozens of genes from plants they eat

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A major crop pest has 50 genes that appear to originate from plants, and it might use them to detoxify plants’ chemical defences Life 27 January 2022 By Jake Buehler Silverleaf whiteflies (Bemisia tabaci) Nigel Cattlin / Alamy Whiteflies appear to have taken the saying “you are what you eat” somewhat literally. New research suggests … Read more

Bioengineers Have Modeled The Workings of The World’s Most Basic Synthetic Life Form

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Life is complicated. Even the smallest cells contain a mind-blowing assortment of chemical reactions that allow them to thrive in a chaotic landscape. If we want to know where to draw the line between life and bubbles of stale old organic soup, it helps to strip away the non-essential extras to expose the core components, … Read more

Huge Project Is Now Underway to Sequence The Genome of Every Complex Species on Earth

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The Earth Biogenome Project, a global consortium that aims to sequence the genomes of all complex life on earth (some 1.8 million described species) in ten years, is ramping up.   The project’s origins, aims and progress are detailed in two multi-authored papers published today. Once complete, it will forever change the way biological research … Read more

New Evidence Challenges The Idea That Mutations Are Entirely Random

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It’s a common misconception that evolution has a sense of direction – a notion that biology nerds around the world are constantly trying to correct. But new research reveals there may be a semblance of truth to this misconception, at least more than we ever realized.   While it’s not as straightforward as mutation with … Read more

Mapping where HIV hides its genes suggests cure strategy | Science

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An HIV infection remains maddeningly difficult to cure because the virus is so good at hiding out. Yes, antiretroviral (ARV) drugs can control an infection, but HIV integrates its genes into human chromosomes, evading both drugs and the immune system. Now, a research group studying a handful of HIV-infected people who have been on treatment … Read more