Physiological and Biochemical Zoology. Get smart. However, there is no evidence thus far that sex ratio is manipulated by parental care. Bibcode : Sci
Three crocodilian genomes reveal ancestral patterns of evolution among archosaurs. Location-dependent sex determination in Bonellia and Crepidula As mentioned in Chapter 3, the sex of the echiuroid worm Bonellia depends on where a larva settles.
Sci Rep 5, Nagai, K. Thorneloe, K. Potential contributions of heat shock proteins to temperature-dependent sex determination in the American alligator.
Location-dependent sex determination in Bonellia and Crepidula As mentioned in Chapter 3, the sex of the echiuroid worm Bonellia depends on where a larva settles. In this species, high incubation temperature during egg development reverses genotypic males ZZ into phenotypic females; so females can be ZZ or ZW, but males are always ZZ.
Developmental Biology. Sign in. Males, on the other hand, are "heterogametic," with one X chromosome and one Y chromosome. This paradigm, though, has been recently challenged, with new evidence now emerging that there may indeed be both sex chromosomes and temperature involved in the sex determination of some reptile species.
Similarly, injecting eggs with inhibitors of estrogen synthesis will produce male offspring, even if the eggs are incubated at temperatures that usually produce females Dorizzi et al. Sexual differentiation humans Development of the reproductive system gonads Mesonephric duct Paramesonephric duct.