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What is Genetic Drift?

What is Genetic Drift?

Scientist throw around words and phrases that are sometimes hard to understand. This is not one of them. Genetic drift is an easy concept. Dr Rob brings up the example drift among of human mitochondria, perhaps the most extreme form anyone has ever seen. And, since...
The continuing saga of Mitochondrial Eve

The continuing saga of Mitochondrial Eve

Where do we place Mitochondrial Eve on the human family tree? How many mutations have occurred within the human mtDNA sequence? How much of that sequence is evolutionarily constrained? Are mtDNA mutations predictable? All this and more in this installment of Biblical...
The Dark Proteome

The Dark Proteome

Even though it was completed a quarter century ago, geneticists still struggle to estimate the number of genes in the human genome. They went from ‘hundreds of thousands’ to “22 thousand”, then more recently to “about 19,500”. The number, however, has just exploded....