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evolution of species ends in meaninglessness-not valid
Wouldn't diploidy and polyploidy redundancy also be conservative toward beneficial changes? The bigger picture make take some time to develop?
Quote from: puppypower on 01/04/2020 23:14:19Wouldn't diploidy and polyploidy redundancy also be conservative toward beneficial changes? The bigger picture make take some time to develop? Not always. Dominant alleles show up phenotypically. Don't forget to take natural and sexual selection into account. They work based on phenotypical characteristics. They amplify the effect of beneficial mutations. Specimens with slightly better phenotypes may outcompete their peers in survival and reproduction rate and eventually dominate the population.
The peacock mating ritual is all about shallow surface criteria. If a male mutation was positive in terms of his digestion; individual selective advantage, but it did not improve his surface "bling", this mutation will not be chosen by the female. In fact, a negative mutation, that is hidden, and does not impact the male bling will be chosen. Don't birds show changes in species, base mostly on surface bling, more often than the do based on a better motor and drive train? The latter are below mating radar. The ugly duckling will not be chosen, even if they have beautiful internal advances hidden below the ugly.
It will stay below the radar of social and conscious standards and not automatically be selected.
We are not talking about changes in small, often unseen parts of the whole, even though a mutation in a gene, can only alter one protein at a time.
Quote from: puppypower on 03/04/2020 13:58:35We are not talking about changes in small, often unseen parts of the whole, even though a mutation in a gene, can only alter one protein at a time.Small mutations can sometimes significantly change survival rates of organisms. They may enable new food sources which previously inedible (see LTE experiment on E. coli and lactose tolerance on human). They may provide immunity to diseases, or adaptability to new environment, such as colder climate, lower air pressure, etc.
Lactose intolerance is an example of what can go wrong with mutations.
We need a mechanism to get the Koala to think outside box, or the hypothetical meat eating change will be lost or ignored by all.