Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337670319
Author: STARR
Publisher: Cengage
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Chapter 14, Problem 4DAA
Summary Introduction
To determine: The country whose native people have the lightest skin.
Concept introduction: Melanosomes in skin synthesize melanin pigment and account for the human skin color. Melanin pigment accounts for dark skin color. More melanin pigment provides protection against UV radiations and reflects less light. The inter-individual variation is seen in skin colors due to differences in cellular distribution of melanosomes and the amount of melanin they form.
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Explain the roles of Vitamin B and Vitamin D in the evolution of skin color. Use appropriate anthropological terms (such as "natural selection" and "phenotype") Be sure to discuss both Vitamin B folate and Vitamin D as they have different effects?
According to the video “The Biology of Skin Color”, how does UV exposure vary throughout the world?
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Chapter 14 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 14 - Prob. 1DAACh. 14 - Prob. 2DAACh. 14 - Prob. 3DAACh. 14 - Prob. 4DAACh. 14 - Prob. 5DAACh. 14 - Prob. 1SQCh. 14 - Pedigree analysis is necessary when studying human...Ch. 14 - A recognized set of symptoms that characterize a...Ch. 14 - Prob. 4SQCh. 14 - A trait that is present in a male child but not in...
Ch. 14 - Choose the statement that is incorrect. a. A son...Ch. 14 - Prob. 7SQCh. 14 - Prob. 8SQCh. 14 - Klinefelter syndrome (XXY) can most be easily...Ch. 14 - Prob. 10SQCh. 14 - Does the phenotype indicated by the red circles...Ch. 14 - G6PD deficiency is an X-Linked recessive disorder....Ch. 14 - Marian syndrome (Section 13.5) is inherited in an...Ch. 14 - Duchenne muscular dystrophy, which is inherited in...Ch. 14 - Human females have two X chromosomes (XX); males...Ch. 14 - A mutation on an autosome causes a particular...Ch. 14 - Expression of the SRY gene on the Y chromosome...Ch. 14 - The somatic cells of most individuals with Down...Ch. 14 - Mutations in the genes for clotting factor VIII...
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Similar questions
- How does skin color throughout the world match up with UV exposure? A. Darker skin is usually found in high UV areas while lighter skin is usually found in low UV areas B. UV rays are the same throughout the world, so there is no pattern or correlation with skin color C. Skin color throughout the world does not match up with UV exposure D. Lighter skin is usually found in high UV areas while darker skin is usually found in low UV areasarrow_forwardCan you please help me with this question II. Examine Figure 2 above and answer Questions 7–8 7. Why do you think that reflectance data are collected from a subject’s inner arm? 8. Describe the relationship between skin reflectance (y-axis) and latitude (x-axis). Consider both the direction and steepness of the lines’ slopes.arrow_forwardAccording to the video “The Biology of Skin Color”, why are UV rays dangerous to our bodies? What can they do? A. UV rays can mutate the DNA in our skin cells B. UV rays can cause skin cancer C. UV rays can destroy folate D. All of the abovearrow_forward
- Human populations living in countries in the northern latitudes, such as Finland, have a lighter complexion than people living in the tropical countries. What do you think is the reason for this difference?arrow_forwardThis ABC video follows the story of a pair of fraternal African-American twins, one of whom is albino.Watch this video (http://openstaxcollege.org/l/albino) to learn about the challenges these children and their family face. Which ethnicities do you think are exempt from the possibility of albinism?arrow_forward________ are found only in skin, and detect skin deflection. Meissner’s corpuscles; hairy Merkel’s disks; glabrous hair receptors; hairy Krause end bulbs; hairyarrow_forward
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