What causes curly hair?

These hairs are round. However, in curly hair, the way that the cells divide and produce certain proteins is asymmetrical and correlates with the bends in the curved follicle. This results in a hair fiber that has an elliptical shape, which allows it to curl.
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Why do I have naturally curly hair?

Curly hair is dominant, so someone is more likely to have curly or wavy hair if at least one of their parents does. Recent research points to trichohyalin, a protein in hair follicles, as having primary influence over hair curl. However, there are many genes contributing to hair curliness, most of them unknown.
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Is curly hair rare?

Lots of traits are statistically rare: Left-handedness (just 10 percent of the population!), curly hair (11 percent!), and blond hair (4 percent!), to name a few. But of the more than seven billion people on the planet, only 2 percent can claim to have this one special trait.
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What is the rarest hair type?

Hair type 1A is super-straight. It doesn't even hold a curl! 1A is the rarest hair type. It is usually found on people of Asian descent.
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Can Asians have curly hair?

Many Asians have naturally straight hair, but there is a significant group of us who do have naturally curly or wavy hair!
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What Makes Curly Hair Curly?



How is curly hair inherited?

Curly hair is considered a “dominant” gene trait. Straight hair is considered “recessive.” To put that in simple terms, that means that if one parent gives you a curly-haired gene and the other parent gives you a straight-haired gene, you'll be born with curly hair.
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Why is African hair curly?

Follicles that are more oval in shape cause curlier hair to grow. Very tightly coiled hair is due to the nearly flat, ribbon-like structure of their follicles. This hair texture is very common in people of African ancestry. Not only is African hair often coiled, it also has a unique texture.
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What percentage of the world has curly hair?

According to msn.com, only 11 per cent of the world's population has curly hair.
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What race is curly hair from?

The story of human migration and evolution is written in hair DNA. In sub-Saharan Africa, genes favour tight, curly hair.
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Is curly hair rarer than straight?

Hair morphology is one of the more conspicuous features of human variation and is particularly diverse among people of European ancestry, for which around 45% of individuals have straight hair, 40% have wavy hair, and 15% have curly hair.
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Which race has the thinnest hair?

Caucasian hair is generally straight or wavy and is the thinnest, while its cross-section is relatively elliptic.
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Which race has the best hair?

Caucasian, Asian and Indian hair samples were put to the test for the World's Best Hair study. Their results put an end to any splitting of hairs over the issue: in terms of health, the Indian hair is the best, topping other ethnic groups on all four counts.
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Why do mixed race have curly hair?

A hair's curl pattern, thickness, and texture are all linked to a person's genes. Studies suggest that different genes may influence hair texture and thickness in people of different ethnicities. For example, research has shown that the FGFR2 and EDAR genes influence hair thickness in Asian populations.
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What are the 4 types of hair?

The bottom line

Type 1 hair is straight. Type 2 is best described as wavy. Type 3 hair is curly, and type 4 is coily. You may have different curl patterns on different parts of your head.
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Can 2 parents with straight hair have a child with curly hair?

It is not possible for two 'unmixed' parents having straight-hair to reproduce an offspring with curly hair. Having said that, two parents, having straight hair or wavy hair, carrying the gene for curly hair which does not express it as a result of incomplete dominance, can reproduce curly-haired offspring.
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What gene makes curls?

The scientists, from the Genetic Epidemiology Laboratory at the Queensland Institute of Medical Research (QIMR) in Brisbane identified the TCHH gene (trichohyalin) on chromosome one as the major gene controlling the curliness of hair.
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Is curly hair a deformity?

There is no single curly hair gene, and there is no way to genetically alter the presence of curly hair. In fact, medical science isn't great at altering human genes even in simple, well-understood traits.
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Do all black have curly hair?

1. Black hair is literally different than all other hair. While other races can have straight, wavy, or curly strands, most black people have varying degrees of tightly curled strands.
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What are Type 3 curls?

Type 3: Curly Hair. This category encompasses hair that curls into springs and corkscrew shapes. When hair is wet, curls usually look like waves but take on a three-dimensional swirl shape as they dry. Each strand of this hair type can be unique.
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Which ethnicity has the biggest nose?

Africans have the widest and most prominent nose compared to other ethnic groups. Their noses are featured with enlarged nostrils, wide and rounded tips and a lack of protruded nasal bridge. West Africans have the widest noses (widest nostrils), while north Africans tend to have the smallest wide noses.
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What is the hairiest race of human?

Still, there are genetically influenced variations in people: Whites tend to be hairier than blacks, and among whites, Mediterranean and Semitic people tend to be hairier than Scandinavians and Anglo-Saxons. The least hairy peoples are Asians and American Indians.
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Which race has the most acne?

Results: Clinical acne was more prevalent in African American and Hispanic women (37%, 32% respectively) than in Continental Indian, Caucasian and Asian (23%, 24%, 30% respectively) women.
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Which country has most hair loss?

While the numbers are different according to different surveys, it appears that either Greece, Macedonia, or the Czech Republic has the highest rate of baldness in the world.
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Which race has the most oily skin?

People of different races have the same number of melanocytes but they are more active in dark-skinned people. Oil glands tend to be more numerous and large in black skin, and follicles tend to be larger, so black skin tends toward oiliness, although it is less acne-prone.
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Which country has thickest hair?

The thickest strand of human hair is 772 micrometres (0.03 inches) and was plucked from the beard of Muhammad Umair Khan (Pakistan), in Lahore, Punjab, Pakistan, as verified on 3 March 2021.
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