Evolution (Biology)
The Mysterious Dance of the Cricket Embryos
In June, 100 fruit fly scientists gathered on the Greek island of Crete for their biennial meeting. Among them was Cassandra Extavour, a Canadian geneticist at Harvard University. Her lab works with fruit flies to study evolution and development — “evo devo.” Most often, such scientists choose as their “model organism” the species Drosophila melanogaster […]
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How Omicron’s Mutations Allow It To Thrive
Because an immunocompromised host doesn’t produce a lot of antibodies, many viruses are left to propagate. And new mutant viruses that resist the antibodies can multiply. A mutation that allows a virus to evade antibodies isn’t necessarily advantageous. It could make the virus’s spike protein unstable so that it can’t latch quickly onto a cell, […]
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