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How temperature affects sex determination in crocodile eggs
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Sunderland MA: Sinauer Associates ; Search term Environmental Sex Determination Temperature-dependent sex determination in reptiles While the sex of most snakes and most lizards is determined by sex chromosomes at the time of fertilization, the sex of most turtles and all species of crocodilians is determined by the environment after fertilization. In these reptiles, the temperature of the eggs during a certain period of development is the deciding factor in determining sex, and small changes in temperature can cause dramatic changes in the sex ratio Bull There is only a small range of temperatures that permits both males and females to hatch from the same brood of eggs.Incubation of alligator eggs at 30°C produces % females, at 33°C % dence and patterns of temperature dependent sex determination (TSD) in species of crocodilians examined (Table 1). examining the effects of differing temper-. Temperature-dependent sex determination (TSD) is a type of environmental sex determination The eggs are affected by the temperature at which they are incubated during the middle one-third of embryonic .. "The histone demethylase KDM6B regulates temperature-dependent sex determination in a turtle species". In temperature-dependent sex determination, however, it is the these reptiles is at the mercy of the ambient conditions affecting egg clutches in nests. For example, in many turtle species, eggs from cooler nests hatch as all males, and eggs...the end of the story look at the video above ↑ ↑ ↑

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