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Light-Coloured Moths Case Study

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The results indicated the light coloured lichen covered tree environment favours the light coloured body allele in moths, with 64% light coloured moths making up the moth population and 36% dark coloured moths making up the moth population in the fifth year. The results for the dark coloured soot covered tree environment showed that the environment favours dark coloured body allele in moths; 60% dark coloured moths and 40% light coloured moths made up the moth population. The results are supported by Darwin’s theory of natural selection; the genes that are best suited to the environment are favoured, the advantageous heritable genes will continue to be passed on for generations, and there will be a gradual increase in the population of the more favourable gene. In this …show more content…

In turn, there would be a more significant difference in the ratio between the favoured allele to the environment and the disadvantageous allele. This stimulation is helpful, yet possibly inaccurate because the light-coloured moths in the gizmo were easier to spot in their light-coloured tree environment, than the dark-coloured moths in the dark-coloured tree environment. The human mind is another factor to this stimulation that differs from the real situation and decreases accuracy, because a human mind may not possible think and see the same things a bird may. The human mind will search more intently for the camouflaged moths than a bird would, because the bird would just want food and not care about whether or not they found any of the hidden moths, whereas the human mind searches for both coloured moths. The gizmo is more accurate than a real life experiment when pertaining to counting and keeping track of the moths. In a real experiment, it would take a very long period of time to conduct this experiment and environmental pressures may have

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