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genes

cell biology

Bacterial Clones Show Surprising Individuality

September 4, 2019

Genetically identical bacteria should all be the same, but in fact, the cells are stubbornly varied individuals.

cell biology

Cellular Life, Death and Everything in Between

July 8, 2019

The discovery that apparently dead cells can sometimes resurrect themselves has researchers exploring how far they can push the point of no return.

Art for "The Body’s Clock Offers a Rhythmic Target to Viruses"
chronobiology

The Body’s Clock Offers a Rhythmic Target to Viruses

May 30, 2019

Viruses and other parasites may sync with their host’s biological clock — or reset it — to gain an advantage.

Art for "Stem Cells Remember Tissues’ Past Injuries"
developmental biology

Stem Cells Remember Tissues’ Past Injuries

November 12, 2018

Stem cells seem to retain memories of old injuries to improve future healing. When that system goes wrong, chronic inflammation can result.

Art for "Adaptations or Neutral Changes? Evolutionary Theory Seeks a Balance"
evolution

Theorists Debate How ‘Neutral’ Evolution Really Is

November 8, 2018

For 50 years, evolutionary theory has emphasized the importance of neutral mutations rather than adaptive ones at the level of DNA. Real genomic data challenges that assumption.

Art for "In the Nucleus, Genes’ Activity Might Depend on Their Position"
cell biology

In the Nucleus, Genes’ Activity Might Depend on Their Location

November 6, 2018

Using a new CRISPR-based technique, researchers are examining how the position of DNA within the nucleus affects gene expression and cell function.

Art for "‘Broadband’ Networks of Viruses May Help Bacteria Evolve Faster"
microbiology

‘Broadband’ Networks of Viruses May Help Bacteria Evolve Faster

October 16, 2018

A newly discovered mechanism may enable viruses to shuttle genes between bacteria 1,000 times as often as was thought — making them a major force in those cells’ evolution.

Photo of mice
Abstractions blog

Unexpected Diversity Found in 16 New Lab Mouse Genomes

October 1, 2018

The availability of 16 new mouse genomes will help accelerate research into the genetic underpinnings of human traits and diseases.

Photo of ants holding larvae.
evolution

The Elusive Calculus of Insects’ Altruism and Kin Selection

April 10, 2018

How the ultra-cooperative behavior of ants, bees and other social insects could have evolved continues to challenge formal analysis. But a new theory about hedging bets against nature’s unpredictability may change the math and shift the debate.