PROCEDURE PART 4: How Does Recent Migration Affect Our Health? Watch the film Th
ID: 192547 • Letter: P
Question
PROCEDURE PART 4: How Does Recent Migration Affect Our Health? Watch the film The Biology of Skin Color (http://www.hhmi.org/biointeractive/biology-skin-color) from time stamp 16:04 minutes to the end In this segment of the film, Dr. Jablonski and Dr. Zalfa Abdel-Malek explain that some people are living in environments that are not well matched to their skin colors. One example is vitamin D production. The recommended level of circulating vitamin D is 20 ng/mL (nanograms per milliliter). But, as you learned in Part 3, vitamin D production is affected by UV intensity and skin color Figure 5 shows the concentrations of serum 25(OH)D vitamin, which is the main type of vitamin D that circulates in blood. Measurements were taken among people living in the United States and were standardized to negate the effects of weight, age, and other factors. Examine Figure 5 and answer Questions 22 and 23. 40 35 30 25 20 15 P4 0001 PE 0001 PExplanation / Answer
23.
In overall population, high levels of vitamin D is observed in nonhispanic white than other groups such as nonhispanic black, mexican Americans and others. In males nonhispanic whites have high levels of vitamin D than nonhispanic blacks, mexican Americans and others. The nonhispanic blacks also have even low levels than vitamin D than mexican Americans and others. In females, nonhispanic whites have high levels of vitamin D than nonhispanic blacks, mexican Americans and others. Among all groups, nonhispanic black females have low levels of vitamin D compared to overall and all types of amle and female populations.
24.
The major consequences due to migration result because of change in environment. The environmental changes in some regions may increase the risk of great exposure to radiation and resulting in skin cancers in most parts of the globe.
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