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An unusual gentoo penguin with dark pigmentation

Life

Extremely rare black penguin spotted in Antarctica

For just the second time, biologists have spotted a gentoo penguin with melanism, a genetic condition that results in unusually dark feathers

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Painting showing Gregor Mendel, Austrian scientist who experimented with garden peas to establish the principle of heredity.

Comment

Disputed Inheritance review: Why do we still bother with Mendel?

Culture

Humans

The human Y chromosome has been fully sequenced for the first time

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Humans

Ötzi the iceman was dark-skinned and balding, suggests genome analysis

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A mitochondrion

Life

Ocean bacteria may be closest relatives of mitochondria in our cells

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Amyloid plaques in the brain of someone with Alzheimer's disease. The condition has also been linked to too much cholesterol in brain cells, slowing brain signalling

Health

Gene variant that raises Alzheimer's risk may boost fertility in women

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Someone having their blood tested for HIV in Kampala, Uganda, in December 2022

Health

Gene variant that seems to protect against HIV may lead to new drugs

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Targeted mRNA delivery will lead to cheaper cures for many diseases

Health

Targeted mRNA delivery will lead to cheaper cures for many diseases

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Health

Your genes may influence how much fruit, fish or salt you eat

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Life

Some sea snakes have re-evolved the ability to see more colours

Most snakes can see a limited range of colours, but the blue-banded sea snake has regained genes lost millions of years ago that may let them see ultraviolet and blue light

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Environment

Breeding corn to boost yields has made it more vulnerable to heat

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Health

Genetic marker discovered for the severity of multiple sclerosis

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Health

How new fetal therapies are treating genetic conditions in the womb

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Health

Experimental treatment could work against prion diseases like CJD

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