Item 14 14 of 41 Part A - What of the following is the best example of acclimati

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Item 14 14 of 41 Part A - What of the following is the best example of acclimatization? Tibetan sherpas are better able to handle the low oxygen pressures because their ancestors evolved in that environment and they produce a hemoglobin with higher oxygen affinity. Mountain climbers whose ancestors did not evolve in this environment can adjust to the low oxygen pressure by producing a different hemoglobon which has a higher affinity to oxygen. Adjustments made by the mountain climber (whose ancestors did not evolve in this environment) can be passed on to his children Mountain climbers whose ancestors did not evolve in high altitudes can adjust to the low oxygen pressure by upregulating expression of the hemoglobin gene (making more hemoglobin). Submit Request Answer

Explanation / Answer

Answer 14. The correct option is D. Those whose ancestors did not evolve in high altitudes can upregulate the expression of hemoglobin gene in order to acclimatize themselves.

Answer 11. The correct option is B. Development of sweat glands. Although there is a risk of dehydration but they are needed to handle the heat and cooling off.

Answer 10. The correct option is D. Gap 1 (G1) and Gap 2 (G2) are important checkpoints in cell cycle to assess and repair damaged and mutated DNA.

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