In: Biology
How did you get to be you? In other words, what selfish genes made humans have some of their unique features. Be succinct.
Alleles increase their frequency in the population if they cause more copies of themselves to be relative to other alleles . Alleles are different form of the same gene . By increasing their frequency , they decrease the frequency of alternative alleles , termed as selfish
Selfish genes called meiotic drive elements are responsible for making sex chromosomes genetically incompatible at a faster rate . Selfish gene are parasite of the genome . If two populations are leaky and there is opportunity for gene flow , a selfish gene can leak over into the population and spread there . If the species interbreeds and this selfish gene is able to passed down instead of become incompatible , that part of genome will become perfectly exchangeable , In some cases a selfish gene will basically erase the build up of incompatibilities for a part of genome . Therefore a unique features are developed in humans . That's why you get to be you