Different kinds of the same

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Completion of the human genome sequence means that we know the arrangements of DNA bases and the genes which perform biological functions- but what is this telling us:

  1. All human beings of different racial and ethnic identify (African, Asian, Indian, Caucasian) share 99.5% sequence identity.
  1. The 0.5% sequence variation in different populations contributes to differences in skin color, hair and eye color, height, built, response to environmental  exposures, differences in prevalence of disease susceptibility or resistance or even differences in drug metabolism
  1. The sequence variations and environmental factors contributes to adaptive traits differences such than Africans have adopted dark skin pigmentation in high UV environments against UV radiation damage while at the same time making sufficient vitamin D (an essential nutrient). On the other hand, light skin pigmentation is adaptation in low UV environment yet is able to make sufficient Vitamin D. Therefore, a dark skinned African who migrates to low UV environments are not able to make sufficient Vitamin D especially doing winter months and thus must consume diets rich in Vitamin D (or use vitamin D supplements) to avoid susceptibility to certain diseases including cancer. Similarly light skin pigmented individuals who migrate to high UV environments must protect themselves against too much UV radiation or risk getting skin cancer.
  1. Information from the human genome categorically dispels any notion of racial hierarchy where one race is intellectually more superior to another race.

One thought on “Different kinds of the same

  1. Very True Bernard……..”Information from the human genome categorically dispels any notion of racial hierarchy where one race is intellectually more superior to another race.” Yes this is very True and God said it first and He also said we are to Love our Neighbor regardless of the color of their skin, what is important is what’s in our heart not the color of our Pigmentation and it’s only God’s Wisdom that is Superior.

    I have much respect for those with dark Pigmentation that I have met Blogging over the years, each one has touched my heart with Their kindness, respect and Integrity and not one of them has looked down on me because I have light Pigmentation, I feel very Blessed having met them.

    Christian Love – Anne.

    Like

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