#Gamete production by #meiosis is expected to be balanced with even proportion of y-chromosome bearing #sperm (leading to son in #mammal). This new study in #mouse shows that sperm #sexratio can be tweaked in response to sexual competition. #science #biology
📄 Firman et al. (2020) Sperm sex ratio adjustment in a mammal: perceived male competition leads to elevated proportions of female-producing sperm. Biology Letters 16:20190929 http://dx.doi.org/10.1098/rsbl.2019.0929