dmaiski Posted September 13, 2012 Author Share Posted September 13, 2012 you have a point in that it can be related to a trait that is beneficial to an organism, good examples of this are long legs, tails(no idea where we lost ours), and muscle strength but there are also plenty of examples of really bad traits that are sexual, like a baboons red butt, a peacocks feathers, oversized antlers(on herbivorous species), bright colours(all the better to see you with), secretion of chemicals(musk, not a good thing when there are predators) but this is getting too complex lets get down to basics (i say sexual bacteria are nice and simple) lets say you have 1 mutated bacteria its mutation makes it use 5% of its energy on making a chemical compound to attract more mates (bacteria already make such compounds as a sort of IFF system to identify each other) 5% is a lot of energy to spend on signalling, but it results in the bacteria being positively selected conversely more fit bacteria, the ones that spend 5% less energy, are not selected for because the chemical marker is highly potent you can argue all day whether it is or is not a beneficial trait for reproduction but it is not a beneficial trait for survival, 5% for a bacteria is like chopping off your arm, its a fairly bad mutation if this mutation did not promote mating, it would be selected out very quickly Link to comment Share on other sites More sharing options...
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