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genetics

Evolution settled on a genetic code that uses four letters to name 20 amino acids. Synthetic biologists adding new bases to DNA will be free to improve on nature — if they can.
synthetic biology

Is a Bigger Genetic Code Better? Get Ready to Find Out

Evolution settled on a genetic code that uses four letters to name 20 amino acids. Synthetic biologists adding new bases to DNA will be free to improve on nature — if they can.

The oldest law of genetics says that gametes combine randomly, but experiments hint that sometimes eggs select sperm actively for their genetic assets.
genetics

Choosy Eggs May Pick Sperm for Their Genes, Defying Mendel’s Law

The oldest law of genetics says that gametes combine randomly, but experiments hint that sometimes eggs select sperm actively for their genetic assets.

Puzzle solvers rediscovered a simple mathematical result of Mendelian genetics and weighed in on a Richard Dawkins metaphor.
insights puzzle

Solution: ‘Are Genes Selfish or Cooperative?’

Puzzle solvers rediscovered a simple mathematical result of Mendelian genetics and weighed in on a Richard Dawkins metaphor.

Can you discover a simple mathematical result of Mendelian genetics that describes how genes interact with each other?
insights puzzle

Are Genes Selfish or Cooperative?

Can you discover a simple mathematical result of Mendelian genetics that describes how genes interact with each other?

If DNA repair makes useful mutations more likely, it could accelerate cells’ adaptations to harsh environments.
genetics

Beating the Odds for Lucky Mutations

If DNA repair makes useful mutations more likely, it could accelerate cells’ adaptations to harsh environments.

The computational immunologist Purvesh Khatri embraces messy data as a way to capture the messiness of disease. As a result, he’s making elusive genomic discoveries.
Q&A

Wanted: More Data, the Dirtier the Better

The computational immunologist Purvesh Khatri embraces messy data as a way to capture the messiness of disease. As a result, he’s making elusive genomic discoveries.

The computational biologist John Novembre uses our genetic code to rewrite the history of humanity.
Q&A

A Map of Human History, Hidden in DNA

The computational biologist John Novembre uses our genetic code to rewrite the history of humanity.

How to calculate when a gene’s rate of evolution will slow to a crawl.
insights puzzle

Solution: ‘A Ticking Evolutionary Clock’

How to calculate when a gene’s rate of evolution will slow to a crawl.

How quickly will a gene’s rate of evolution slow to a crawl?
insights puzzle

A Ticking Evolutionary Clock

How quickly will a gene’s rate of evolution slow to a crawl?