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Descendants of the Sun

Descendants of the Sun

What Countries Does the Equator Run Through in Africa? In Africa, the equator runs along for almost 2500 miles, passing through 6 countries, and ironically the list does not include Equatorial Guinea. The six countries in Africa the equator does run through include: Gabon, Republic of Congo, Democratic Republic of Congo, Uganda, Kenya and Somalia. […]

The science of skin color

The science of skin color

When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it’ll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change. Brazilin Model: Vanessa Fonseca What’s to account for that difference, and how did our skin come to take on […]

Take your Vitamin D Supplement?

Take your Vitamin D Supplement?

Women lose bone mass more rapidly than men? – spice4life Who’s most at risk for deficiency? People who have limited sun exposure or people who have dark skin in areas with weaker sunlight are also at risk since their skin exposure may not be adequate to make enough vitamin D. Breastfed infants are most at risk for […]

Polygenic Inheritance

Polygenic Inheritance

Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin color, eye color and weight.   GREAT POLYGENIC INHERITANCE VIDEO REEL>   https://archive.org/details/skindoc Based on the true story of Sandra Laing, a light-skinned, African […]