Ask Experts Questions for FREE Help !
Ask
    boppudi_prahaas's Avatar
    boppudi_prahaas Posts: 11, Reputation: 1
    New Member
    		  
    #1

    Aug 30, 2007, 06:39 AM
    Different skin colours
    :rolleyes: why do people living different reigons have different skin colours? :confused:
    macksmom's Avatar
    macksmom Posts: 1,787, Reputation: 152
    Ultra Member
    		  
    #2

    Aug 30, 2007, 07:02 AM
    Skin color is a difference in the proctective pigment of the skin (melanin). It is our bodies natural way to protect the body in different climates, and weather conditions. Generally people from sunny places (Africa, Cambodia, etc) have darker skin tone. You can see this in the summer... if you are light skinned and you go out for a long period you may get burnt, turning your light skin to red, then the burn eventually becomes tan, the more you are in the sun the tanner you are.

    Now that is the easily explanation...

    The more complex one is that Melanin comes in two types, red (pheomelanin) and dark brown to black (eumelanin). The amount and type of melanin a person has is determined by 4-6 genes. One copy of the genes is inherited from the father, one copy from the mother. Each gene comes in several different DNA codes which, depending on which genes you inherit, resulting in different skin tone.
    shygrneyzs's Avatar
    shygrneyzs Posts: 5,017, Reputation: 936
    Uber Member
    		  
    #3

    Aug 30, 2007, 07:05 AM
    We know that skin color is governed by more than one pair of genes. For simplicity, let's assume there are only two, 1 located at positions A and B on the chromosomes. One form of the gene, "M," "says" to make lots of melanin; another form of the gene, 2 "m," says to only make a little melanin. At position A we could have a pair such as MAMA, MAmA, or mAmA 3 which would instruct the skin cells to make a lot, some, or little melanin. Similarly, at position B we could have the gene pairs MBMB, MBmB, or mBmB instructing cells to make a lot, some or little melanin. Thus very dark people could have MAMAMBMB.

    For the rest of the article see:
    How did different human skin colors come about? - ChristianAnswers.Net

    There are genetic charts that explain some of the genetics.

    Another good article is in:

    Why do people have different colored skin? | Answerbag.com
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Water colours [ 2 Answers ]

How do I use water colours that come in tubes?:o :confused:

Unnatural hair colours. [ 6 Answers ]

For a few months I have been dying my hair a dark brown colour with a red fringe. Permanent hair dye. Now it fades pretty quick (the reds almost gone back to my natural colour and the brown has gone considerably lighter) but I want to dye my hair with blue, or pink hair dye. Either that, or go...

Lurid Colours on LCD TV [ 1 Answers ]

The colours on my !7" digital TV have suddenly gone lurid on digital channel but still reasonable on analog and recordings . Any ideas out there

Water colours [ 10 Answers ]

I never have much spare time at the moment, but I am thinking of joining a water colour class. I am quite artistic, sketches I like to draw are of people, especially faces, but I have never thought about water colours and landscapes, at the moment my favourite artist is claude monet. To get kitted...

Colours for new borns [ 1 Answers ]

Hi! Does anybody know what kind of effect has the colours on new borns? What kind of colours are recomanded for room, clothes,. What kind of effect has each one? Thank you.

View more questions Search