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Sex selection is the attempt to control the sex of the offspring to achieve a desired sex. It can be accomplished in several ways, both pre- and post-implantation of an embryo, as well as at childbirth. According to the united nations population fund, the reasons behind sex selection are due to three factors and provide an understanding. In sex selection, certain traits (like size) are selected not by the environment, but by social interactions and mating patterns. During the mid-to-late twentieth century, researchers offered other methods of timing intercourse for sex selection, but their results were based on studies of artificial insemination, rather than naturally occurring pregnancies. Whelan claimed her method was supported by natural insemination studies and that it worked for couples trying to conceive an infant of a. Sex-specific selection has been considered as one of the primary evolutionary processes responsible for the evolution and maintenance of sexual dimorphism, interplaying with the breakdown of intersexual genetic correlations that constrain between-sex divergence of traits 40, 52. For example, sex-linked diseases like muscular dystrophy and hemophilia that are inherited via the mother will only affect male offspring. In addition, conditions like fragile x or autism often present more severely in one gender than in the other. Other times, prospective parents turn to sex selection when they have a strong desire to complete. Our method employed an initial feature selection step to identify and select the most promising features for sex prediction. After this selection, the predictive power of these feature sets was analysed through 10-fold cross validation using, separately four machine learning classifiers. It was not until the beginning of the last century that the biology of sex selection and the mans crucial role in it was understood, which ushered in a new era of scientific attempts to. The well-known chinese gender chart is mostly used to predict the sex of unborn babies, it is however, known as a tool for gender selection among the ancient chinese nobles. As a gender selector, it is safe, natural, simple, free and accurate. Although gender selection may also be achieved by other methods, it is only this baby birth chart that can be tested for all mother-child before you.   natural selection is the prevailing theory for explaining biological change that is, how evolution occurs. 1-3 it is not the only factor in evolutionary change, as forces like genetic drift and sexual selection are generally considered to be either sub-theories or parallel theories to natural selection. Natural selection is, however, by far the most dominant theory of evolution.

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