https://www.newstatesman.com/future-proof/2015/02/sex-isn-t-chromosomes-story-century-misconceptions-about-x-y

"the invention of the sex chromosome concept – one that Richardson argues we should reject entirely as a mistake that has led to bad science, societal prejudice and widespread misunderstanding of what sex really is."

“the science of sex has, for some years now, recognised that sexual characteristics exist on a spectrum – not as a binary”

“there are extremely few sexual characteristics solely controlled by the presence or absence of a Y chromosome – and just as there are plenty of characteristics controlled by genes found on other chromosomes, the “sex” chromosomes also carry genes that determine traits that have nothing to do with sex.”

“The X is dubbed the ‘female chromosome’, takes the feminine pronoun ‘she’, and has been described as the ‘big sister’ to ‘her derelict brother that is the Y’ and as the ‘sexy’ chromosome. The X is frequently associated with the mysteriousness and variability of the feminine, as in a 2005 Science article headlined ‘She Moves in Mysterious Ways’ and beginning, ‘The human X chromosome is a study in contradictions’. The X is also described in traditionally gendered terms as the more ‘sociable’, ‘controlling’, ‘conservative’, ‘monotonous’, and ‘motherly’ of the two sex chromosomes. (1/2)