Some reptiles exhibit temperature-dependent sex determination ( TDSD ), in which the incubation temperature determines whether a particular egg hatches as male or female.
22.
As shown, the data has been generated at differing incubation temperatures . km and Ki are not significantly altered by the differing incubation temperature.
23.
As shown, the data has been generated at differing incubation temperatures . km and Ki are not significantly altered by the differing incubation temperature.
24.
BvgAS can be inactivated by millimolar concentrations of magnesium sulfate or nicotinic acid, or by reduction of the incubation temperature to d " 26 �C.
25.
Incubation temperatures can range from 4-37 �C, pH values in the reaction range from 7-9, and incubation times range from a few minutes to 12 hours.
26.
In some turtles, for example, males are produced at lower incubation temperatures than females; this difference in critical temperatures can be as little as 1 2 �C.
27.
Incubation temperatures of 86 �F ( 30 �C ) or lower produce a clutch of females; those of 93 �F ( 34 �C ) or higher produce entirely males.
28.
TSD may be advantageous and selected for in turtles, as embryo energy efficiency and hatchling size are optimized for each sex at single-sex incubation temperatures and are indicative of first-year survivorship.
29.
SmaI is unusual in that it shows maximal activity at 25 �C; it has a half-life of 15 minutes at 37 �C, which is the incubation temperature used for most restriction enzymes.
30.
Beginning in 1855, he purposely produced monstrous chick embryos by using " indirect methods " that exposed the egg to teratogenic factors & mdash; such as, implementing lowered incubation temperatures for several hours.
