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genetics

Latest Articles

Illustration of butterflies with similar wing-color patterns holding bundles of DNA.
genetics

How Supergenes Fuel Evolution Despite Harmful Mutations

By Carrie Arnold
November 8, 2022
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Supergenes that lock inherited traits together are widespread in nature. Recent work shows that their blend of genetic benefits and risks for species can be complex.

The Joy of Why

Why Do We Get Old, and Can Aging Be Reversed?

By Steven Strogatz
July 27, 2022
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Everybody gets older, but not everyone ages in the same way. In this episode, Steven Strogatz speaks with Judith Campisi and Dena Dubal, two biomedical researchers who study the aging process.

Q&A

When a Gene Illness Discovery Means Breaking Bad News

By Rachel Crowell
December 14, 2021
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When scientists discover genes linked to dangerous illnesses in their samples, how should they convey that news to the study participants? The geneticist Cristen Willer had to tackle that challenge.

Portrait photo of Catherine Dulac of Harvard University and the Howard Hughes Medical Institute.
Q&A

Catherine Dulac Finds Brain Circuitry Behind Sex-Specific Behaviors

By Claudia Dreifus
December 14, 2020
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Catherine Dulac is overturning preconceptions about “male” and “female” instincts and opening new avenues to treating postpartum depression.

Illustration of a blue tiger.
Abstractions blog

How Neutral Theory Altered Ideas About Biodiversity

By Christie Wilcox
December 8, 2020
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The simple insight that most changes are random had a profound effect on genetics, evolution and ecology.

Photo of one of the Russian sturgeon-paddlefish hybrids called sturddlefish.
Abstractions blog

Extra DNA May Make Unlikely Hybrid Fish Possible

By Christie Wilcox
August 5, 2020
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The unintentional creation of “sturddlefish” hybrids may illuminate the genomic mechanisms that govern whether species can interbreed.

Insights puzzle

How to Design (or at Least Model) Mixed Dog Breeds

By Pradeep Mutalik
July 31, 2020
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Readers simulated the genetics of dog breeding to solve a puzzle about mixed breed percentages and sexual reproduction.

Insights puzzle

How to Breed a Pomsky and Other Questions About Dogs and Sex

By Pradeep Mutalik
June 18, 2020
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Solve a puzzle about mixed dog breeds, sexual reproduction and the COVID-19 pandemic.

genomics

Where Do New Genes Come From?

By Viviane Callier
April 9, 2020
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In their search for sources of genetic novelty, researchers find that some “orphan genes” with no obvious ancestors evolve out of junk DNA, contrary to old assumptions.


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