Origin of sex ratio
Examples from the Web for sex ratio
A modification of the sex-ratio and of other ratios through linkage.
Two sex-linked lethal factors in Drosophila and their influence on the sex-ratio.
From an F2 culture that gave practically a 2:1 sex-ratio, vermilion females were bred to club males.
The former are always normal in behavior, and the latter repeat in their descendants the 2:1 sex-ratio.