they are literally non-humans.   ll/10.2466/04.17.cp.4.15 > the gene drd4 codes for the d4 type dopamine receptors in the central nervous system. there are many different drd4 alleles coding different numbers of 48 base pairs from two repeats to 11 repeats. almost all alleles in east asian populations are 2- and 4-repeats, while 7-repeats are found in about 2030% of europeans, africans, and polynesians. some amazonian tribes have more than 50% of this allele> a longer repeat means a smaller number of dopamine receptors, hence, more stimuli are necessary for the carrier to feel satisfied. this makes individuals with longer repeats more attracted to novel ideas and experiences, which lead to novelty-seeking behavior. especially, the 7-repeat allele has been recognized as the gene for novelty-seeking behavior and impulsivity east asians have much higher rates of an oxytocin-receptor genetic mutation that affects the shape and number of the receptors in their body, which results in a greatly diminished ability to empathize with others or fall in love. the mutation (snp) that causes this is located at rs53576.   s53576 > rs53576 is a silent g to a change in the oxytocin receptor (oxtr) gene. studies have demonstrated that individuals with the g allele are more empathetic, feel less lonely, employ more sensitive parenting techniques, and have lower rates of autism
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