What makes hair curly or straight?
A Our genes determine whether our hair will be curly or straight. Africans have tightly curled hair. Chinese have very straight hair. If one cuts across the shaft of a straight and curly hair and examines the two sections under a microscope one can see that the section of the straight hair is round while that of the curly hair is oval or flat. The flatness makes the hair bend easily and so it is curly.
Related posts:
How is nuclear power used? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
How many moons does Jupiter have? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...
General Knowledge
Do you know “Measuring the earth's diameter”.
Do you know
Where were the pyramids built? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
How are underground railways built? Complete General Knowledge Question and Answer for Class 6, 7, 8...
General Knowledge
Why do brides wear a veil? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
Were there dinosaurs which lived under water? Complete General Knowledge Question and Answer for Cla...
General Knowledge
Do you know “Bhagat Singh's ancestral home to be restored”.
Do you know
Do you know “Largest mural painting in Asia”.
Do you know
How does a sundial tell time? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 1...
General Knowledge
Do you know “First woman Anglican bishop of India”.
Do you know
GK Question "Why The Lion Is Called the "King Of Beasts"?" general knowledge book English 2021 curre...
General Knowledge
What is Esperanto? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
Do you know “Important Jain pilgrimage site".
Do you know
What are puffins? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
What are lichens? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
What is a boll weevil? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
Do you know "Indian private craft on the moon in 2016".
Do you know
Do you know “HauzKhas, old and new”.
Do you know
Do you know “Travancore Maharaja's bed”.
Do you know
