Question :
The colour of human skin is produced by
Option 1:
Hemoglobin
Option 2:
Insulin
Option 3:
Adrenaline
Option 4: Melanin
Correct Answer: Melanin
Solution : The correct option is Melanin.
Melanin, a pigment generated by specialised cells known as melanocytes, is principally responsible for the colour of human skin. Melanin is responsible for the varied tones of skin colour found in different people and populations. Melanin is classified into two types: eumelanin, which is brown to black in colour, and pheomelanin, which is red to yellow in colour. A person's skin colour is determined by the amount and kind of melanin in their skin, as well as other variables such as genetics and exposure to sunshine.
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Which of the part of tongue bears cells for sour taste
Front
Back
Sides
Option 4: Middle
The carbon dioxide content in the air that we exhale is about
4%
8%
12%
Option 4: 16%
Milk is not considered a balanced diet now-a-days because of the absence of :
Magnesium and vitamin D
Iron and viramin C
Calcium and vitamin C
Option 4: Iron and vitamin A
Pinna (external ear) is present in
Amphibians
Fish
Option 3: Mammals
Option 4: Reptile
Prawn heart carries:
No blood
Deoxygenated blood
Option 3: Oxygenated blood
Option 4: Mixed Blood
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