Eggs of chickens from the high-altitude region of Tibet have special physiological adaptations that result in a higher hatching rate in low oxygen environments. When eggs are placed in a hypoxic environment, chicken embryos from these populations express much more hemoglobin than embryos from other chicken populations. This hemoglobin has a greater affinity for oxygen, binding oxygen more readily.
Eggs of chickens from the high-altitude region of Tibet have special physiological adaptations that result in a higher hatching rate in low oxygen environments When eggs are. placed in a hypoxic environment, chicken embryos from these populations express much .more hemoglobin than embryos from other chicken populations This hemoglobin has a greater affinity for oxygen, binding oxygen more readily.