Quiz:The Biology of Skin Colour Q1. Which of the following… Quiz:The

  

Quiz:The Biology of Skin Colour Q1. Which of the following… Quiz:The Biology of Skin Colour  Q1. Which of the following statements about melanin is most accurate?Group of answer choices Having melanin is one of the distinguishing features of humans compared to other animals. Everyone has the same type of melanin, but the amount varies from person to person. The more brown-black melanin an individual has, the darker their skin. The more brown-black melanin an individual has in their skin cells, the more likely they are to get mutations in their DNA.  Q2. Which of the following statements is true concerning how light interacts with the pigments in a red tomato?Group of answer choices The pigments absorb blue light. The pigments absorb red light. The pigments reflect green light. The pigments likely protect the cells in the tomato from DNA damage.  Q3. Much of the light given off by the sun is invisible to our eyes.Group of answer choices True False  Q4. Ultraviolet radiationGroup of answer choices is highly energetic. can penetrate living cells. can cause mutations in skin cell DNA cannot enter our cells, so it isn’t a concern.  Q5. A reflectometerGroup of answer choices can objectively measure skin color. can subjectively measure skin color. measures the amount of light reflected back from an object. was not a helpful tool for this project.   Q6. The skin of indigenous people near the poles is almost always dark. Group of answer choices True False  Q7. When they overlaid the map of measured skin colors and UV data, it showed thatGroup of answer choices UV intensity does not correlate with skin color. UV intensity does predict skin color. wherever UV is strong, skin color is dark. the maps were done incorrectly the first time.  Q8. Genetic studies have estimated that the alleles for dark skin have been fixed in African populations for about 1.2 million years. Because humans evolved in equatorial Africa, it is reasonable to assume that Group of answer choices early humans were light-skinned. early humans were dark-skinned. were hunter-gatherers.  Q9. Why doesn’t skin cancer significantly impact human fitness?Group of answer choices It can be cured. It is not deadly. People generally don’t get skin cancer until after their peak reproductive years. So, it really affects your children. People generally don’t get skin cancer until after their peak reproductive years. It doesn’t affect your ability to pass on your genes.  Q10. UVB is critical forGroup of answer choices the synthesis of Vitamin D. breaking down Vitamin C. getting a good suntan. preventing scurvy.  Q11. Select the true statements about skin color.Group of answer choices Skin color is inherited independently of other traits. Skin color is a product of evolution. Skin color is an appropriate way to judge a person. Light skinned individuals have a higher risk for developing skin cancer when exposed to UV light. Science Biology BIO 10 Share (0)

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