Temperature determine sex

Overall, more girls were born compared to boys and temperature fluctuations — particularly from a hot summer to a cold winter — saw the sex ratio become temporarily more pronounced. A Japanese study has found that more baby girls are born, compared to boys, when temperatures rise in the country. To come up with the latest results, experts in Japan studied birth records and miscarriages in Japan between and



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Instead of having genes or chromosomes, that determine whether or not an embryo turns into a male or female, it depends on temperature.



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Temperature-dependent sex determina-tion in embryos is probably the most important component of environmental sex determination.

How does temperature determine sex in some species?


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TEMPERATURE AND SEX DETERMINATION IN REPTILES WITH REFERENCE TO CHELONIANS

Add a comment Your name. The Naked Scientists Podcast. Laboratory investigations Laboratory studies over the past fifteen years have shown that in some reptiles sexual differentiation depends on the temperature prevailing during incubation of the eggs. Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. Hence, the male determines the sex of the offspring.

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2 comments
  1. Naim's incredible Mu-So Qb takes you back to the good old days - where the music captivates and enthralls, rather that simply being something in the background. Hence, there appears to be no marked differences between incubation under constant or fluctuating temperatures.