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...central nervous system (those in which the neurotransmitter is acetylcholine). As a result, mosquitoes carrying the allele have a high susceptibility to predation and males have low reproductive success. A mutation that has more than one effect on an organism – such as that which gave rise to the ester1 allele – is said to exert a pleiotropic effect on the organism....

...central position. Only in the last few centuries have observations and experiments gradually led us to the humbling conclusion that our position in the wider Universe is unremarkable. This course will describe our position in the cosmos, zooming out into our solar system and to larger scales, and also zooming the other way into microscopic scales. Throughout the journey,...