How are some people straight haired and some curly?

Question

Please; what is the thing? I gots to know.

peace

Answer 1

Hair is curly or straight, depending upon the number of disulfide bonds between hair proteins found in the hair shaft.

The greater the number of links, the curlier the hair, and the fewer the number of links, the straighter the hair.

Hair is primarily composed of keratin, a protein, which grows from a sac called the follicle. Cells in the hair follicle generate keratin, and various other proteins, which become a part of the hair shaft. These proteins contain sulfur atoms, and when two of these sulfur atoms pair up and bond, they form a disulfide bond. If the two sulfur atoms in the same protein are at a distance, and join to form the disulfide bond, the protein will bend.

The amount of humidity in the air not only makes for what some label a "bad hair day," but alters the degree of curliness or of straightness of hair. This occurs when high humidity forces water back into the hair fiber, acts on its protein structure, and forces the hair shaft to return to its original structure

Answer 2

Hair is curly or straight, depending upon the number of disulfide bonds between hair proteins found in the hair shaft.

The greater the number of links, the curlier the hair, and the fewer the number of links, the straighter the hair.

Hair is primarily composed of keratin, a protein, which grows from a sac called the follicle. Cells in the hair follicle generate keratin, and various other proteins, which become a part of the hair shaft. These proteins contain sulfur atoms, and when two of these sulfur atoms pair up and bond, they form a disulfide bond. If the two sulfur atoms in the same protein are at a distance, and join to form the disulfide bond, the protein will bend.

The amount of humidity in the air not only makes for what some label a "bad hair day," but alters the degree of curliness or of straightness of hair. This occurs when high humidity forces water back into the hair fiber, acts on its protein structure, and forces the hair shaft to return to its original structure.

People can temporarily alter their hair to force it into a straight state, or a curly state, but only on a temporary, not on a permanent, basis. When a straight-haired person gets a "permanent wave," known as a "perm," he or she is chemically forcing the making of strong disulfide bonds. The wave does not stay permanently, because new hair, which is straight, grows in as the "perm" grows out. People with curly hair may chemically alter their hair to give it a straighter appearance, but this, too, is also a temporary solution to a permanent "problem," with the same end result.

Answer 3

genealogy plays the biggest part hereditry traits of chemical makeup of the hair follicles tend to break down the cells of individual hair inceptors at the base of scalp causes a breakdown of lastic variables in the fiber of hair clastics.That is why hair is curly or sraight. hope this helps.

Answer 4

its all in your genes. your dad has traits or something like that...im not real good in science stuff.... and so does your mom . and when they did the nasty and conceived you, you got a mixture of both. and that there mixture became your genes. some of his some of hers, that determines you. straight or curly hair, brown or blue eyes, etc

Answer 5

people with straight hair have a round shaped hair, people with curly hair have a flat hair - causes it to curl somehow

Answer 6

its to do with there hair follicles . some peoples are curly and some peoples are straight

Answer 7

People with curly hair eat thier bread crusts!!!

Answer 8

Check out this website for a comprehensive answer: http://www.blended-beauty.com/Biracial-Hair-Care-Products-Why-Hair-Curly.html

Answer 9

genes

Answer 10

It is called genes!!