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SPS 290 CHAPTER 6 :

由amin ashraf

greek parts

由Orlando Campos

Fathima Nawaz issue I care about

由Fathima Nawaz

Food and Nutrition Science

由Diyar Akcan

UV Light

Sensor/Guardian Molecule

In Lower Vertebrates

Allows Others to Recognize Other Members of Species

Gives Animal Camouflage

Regulates Body Temperature

In Humans

Protects Cells from UV Damage

UV damage in Skin Cells

Leads to Cancer

Skin Cancer Develops after a person's peak reproductive years

Gene

Human pigmentation

MC1R Gene in Darker Skin

Less Variation

MC1R

Darker Skin

Eumelanin - Brown/black pigment

Lighter Skin

Pheolmelanin - Reddish/yellow pigment

MC1R Gene in Lighter Skin

More Variation

Vitamins

Vitamin B

Folate

Melanin

Protects Folate from UV

Sperm Production

Embryonic Development

Deficiency of Folate

Brith Defect

Vitamin D

Equator

Farther

Less Vitamin D

Higher Latitudes

Harder to Make Vitamin D

Nearer

More Vitamin D

Essential for...

Healthy Immune System

Bone Growth

Dificiency

Bone Development Disease

Rickets

Cripple the Young