From an F2 culture that gave practically a 2:1 sex-ratio, vermilion females were bred to club males.
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.
The former are always normal in behavior, and the latter repeat in their descendants the 2:1 sex-ratio.
sex ratio n.
The proportion of males to females in a given population, usually expressed as the number of males per 100 females at a specific stage in life, especially at conception, birth, and a given stage between birth and death.
The ratio of the numbers of males to females affected by a particular disease or trait.