Articles sur Chromosomes

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Caster Semenya is legally female, was from birth raised as female and identifies as a female. Jon Connell on flickr

Ten ethical flaws in the Caster Semenya decision on intersex in sport

Athlete Caster Semenya will need to take hormone-lowering agents, or have surgery, if she wishes to continue her career in her chosen events. But the decision to ban her is flawed on many grounds.
Gene drives aim to deliberately spread bad genes when invasive species such as mice reproduce. Colin Robert Varndell/shutterstock.com

‘Gene drives’ could wipe out whole populations of pests in one fell swoop

Releasing just 100 mice carrying a faulty gene designed to stop them reproducing can remove an entire population of 50,000, a new study shows, paving the way for new eradication efforts.
There’s a difference in the sex chromosomes between various mammals, such as the platypus compared to humans. Flickr/Darren Puttock

Did sex drive mammal evolution? How one species can become two

How new species are created is at the core of the theory of evolution. Mammals may be a good example of how sex chromosome change drove major groups apart.
It’s naive to pretend there are no profound genetic and epigenetic differences between the sexes. Elephant Gun Studios/Flickr

Differences between men and women are more than the sum of their genes

What produces the differences between men and women? Are they trivial or profound? Are they genetic or environmental, or both? And are men really closer genetically to chimpanzees than to women?

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