Week 3 blog response ESS

Dawkins states that an ESS is the best strategy for an individual depending on what the majority of the population are doing. An ESS is most important because it is applicable wherever we find conflict of interest and that is everywhere! Fisher states that a sex ratio of 50:50 is an ESS. This is due to the fact that if at any point a single sex outnumbered the other, the mating numbers would be disproportionate. If males outnumbered females, the opportunity for each male to have a mate is thus decreased and vice-versa. If each individual is trying to maximize his "own" success, then there must be an equal sex ratio being the 50:50 half males half females.
Conversely if you were to look at sex ratios of autosomal nuclear genes are transmitted to offspring through both of the sexes, so the sex ratio that must be favored is a balance between producing male and female offspring a 50:50 ratio. One can argue however that due to the fact that male species cannot produce offspring themselves, they are not necessary which would discount the male altogether. In contrast, cytoplasmic genes are mainly inherited through the egg cytoplasm and thus transmitted to offspring only through females. This means there is a strong selective pressure for cytoplasmic genes that distort sex ratio toward female production placing the sex ratio to 100:0 in favor of the females. And as previously stated, the sex chromosomes favor the 50:50 ratio potentially solely for mating purposes.
Two of these sex ratios could be the same because of the passing of genetic information through both sex chromosomes and autosomal chromosomes(as long as males were not discounted for not having the ability to produce progeny). The sex ratio of cytoplastic elements is different because that is only passed on through the mother and the male can completely be discounted.