Thermosensitive Period (TSP)
The thermosensitive, or temperature-sensitive, period (TSP) is the point during development at which sex determination occurs in temperature-dependent sex determination systems, such as those present in alligators and turtles. Occurring during the middle third of incubation, the TSP lasts for 7–15 days, species-dependent. The temperature must be maintained during this time for a certain sex to be determined; oftentimes the differences between temperatures required to produce each sex are very slight and during the TSP, sex is susceptible to change with temperature. After this period, however, sex cannot be reversed (see sex reversal).
Read more about this topic: Temperature-dependent Sex Determination
Famous quotes containing the word period:
“There is not any present moment that is unconnected with some future one. The life of every man is a continued chain of incidents, each link of which hangs upon the former. The transition from cause to effect, from event to event, is often carried on by secret steps, which our foresight cannot divine, and our sagacity is unable to trace. Evil may at some future period bring forth good; and good may bring forth evil, both equally unexpected.”
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