Articles on Genetics

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Some Harlequin ladybugs, Harmonia axyridis, have black elytra with two large red spots. Others have two additional red spots backwards, or are decorated with a dozen small red spots. Conversely, there are ladybugs with red elytra, decorated with 20 black spots. All these ladybugs belong to the same species. B. Prud’homme, J. Yamaguchi

In red and black, the genetics of ladybug spots

Where do the pretty colours of the harlequin ladybug come from? A single gene draws the colour patterns of this familiar insect.
A three-banded clownfish (Amphiprion ocellaris) navigates the anemones of the Andaman Coral Reef, India. Ritiks/Wikipedia

Why does Nemo the clownfish have three white stripes? The riddle solved at last

Our children all know the little clownfish Nemo, star of the Pixar film. But why does he have three stripes, rather than one or two? Developmental and evolutionary biology are revealing the answer.
Synthetic biology has the potential to change how we do agriculture – but will the public accept it? from www.shutterstock.com

A fresh opportunity to get regulation and engagement right – the case of synthetic biology

Synthetic biology is highly promising – but if we don't get the regulation and engagement right, we risk alienating members of the public, and may even close doors for potentially fruitful research.
Genetic ancestry testing might all seem like harmless fun, but there is a downside. (Shutterstock)

Genetic ancestry tests don’t change your identity, but you might

The results of genetic ancestry tests are grossly over-simplified. A new study shows the tests reinforce what you want to believe rather than offering objective, scientific proof of who you are.
David Suzuki is an environmental activist, broadcaster and globally recognized geneticist. David Suzuki Foundation

David Suzuki backlash ignores his prize-worthy science

David Suzuki may be best known as an environmental activist and the face of CBC's 'The Nature of Things,' but he's also a globally recognized scientist.

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