Example sentences for: esd
How can you use “esd” in a sentence? Here are some example sentences to help you improve your vocabulary:
The two broadest categories are genetic sex determination (GSD), in which the sex of offspring is set by a sex chromosome or an autosomal gene, and environmental sex determination (ESD), in which sex is determined by temperature (as with turtles), local sex ratio (as with some tropical fish), or population density (as with mermithid nematodes).
Though little is known about the molecular mechanisms of ESD, within the GSD systems many different mechanisms have been uncovered.
CSD strategies, then, may have evolved to program genetically the developmental routines that occur in response to temperature in the vertebrates that use ESD.
Because temperature controls sexual development in crocodiles, many turtles and some lizards, environmental sex determination (ESD) has been proposed to be the primordial vertebrate mechanism for sexual differentiation [ 4].