One popular myth is that hair loss in men is passed down from the mother's side of the family while hair loss in women is passed down from the father's side; however, the truth is that the genes for hair loss and hair loss itself are actually passed down from both sides of the family.
Your parents provided one allele per gene at time of your conception (then these alleles paired to form your hair texture genes). It is the interaction among these alleles, not one specific gene, that determined the character of your hair.
The suspect gene variation sits on the X chromosome, which is handed down to men by their mother. So a man may get an idea of his scalp's future from men on his mother's side of the family. While hereditary factors are an important cause of hair loss, other factors also influence hair growth and loss.
All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. The Supporting Evidence: Y-linked traits follow a clear paternal lineage.
Unlike nuclear DNA, which comes from both parents, mitochondrial DNA comes only from the mother.
Baldness can of course skip generations! If you have bald relatives on both sides of your family tree the chances are high you will be too. However, if the baldness shows up only on one side, it's highly possible the MPB gene will skip not only you but also your siblings. This is how the recessive gene works.
Genetic factors determine both individual levels of androgen and the hair follicle's sensitivity to androgen, as well as other characteristics such as hair colour, type of hair and hair retention. Rising levels of androgens during puberty cause vellus hair to transform into terminal hair over many areas of the body.
According to Personal Health via the New York Times, Caucasians are the hairiest ethnic group, with Semitic and Mediterranean people being the hairiest out of all Caucasians.
Caucasians have the highest hair density among the ethnicities studied. Black people have the lowest. Asian people have hair density that falls somewhere in between.
Hair Growth Rate
Asian hair shows the fastest growth rate in comparison to the other two hair types. African hair has the lowest growth rate.
this actually goes back 35,000 years ago from a genetic mutation. the EDAR gene which is the gene that is responsible for developing the skin. was actually found to be mutated in Asians. this gene is responsible for making a protein that creates hair.
When we casually observe via our eyes, we may feel that we have inherited most of our hair features from either our mom or dad. However, the reality is that we inherit equal volume of genetic information from both mom and dad.
This condition is called hirsutism and is most often caused by excess male hormones such as testosterone. Hirsutism is characterized by excessive dark body hair that grows on a woman's body in uncommon areas such as the face, chest, abdomen, and back.
Hair loss of the legs is called anterolateral leg alopecia. This condition isn't caused by one particular health issue, instead, it is a catchall term for any sort of hair loss on the legs. For example, PAD can cause anterolateral leg alopecia, as can genetics and rubbing the legs together too often.
Men inherit the baldness gene from the X chromosome that they get from their mother. Female baldness is genetically inherited from either the mother's or father's side of the family.
Now, we know for sure that at least one of your mom's X chromosomes is carrying that crucial male pattern baldness gene. When your mom and dad's cells combined to make you, you had a 50% chance of getting that X-linked baldness gene from your mother.
Based on identical twin studies, he and other researchers have calculated that somewhere between 79 and 81 percent of baldness is determined by genes.
1. Hormones. Like other parts of the body, the skin of the areola contains hair follicles. These can be affected by the fluctuations in hormones during times of significant hormonal change, such as puberty, pregnancy, and menopause.
Both men and women produce testosterone; women just have lower amounts. Testosterone changes vellus hair into terminal hair by activating receptors in hair follicles. This is totally normal and happens to everyone, especially during puberty.
In fact, all women have a small amount of the 'male' hormone, testosterone, circulating in their bodies. It is produced mainly by the adrenal glands, which are situated over the kidneys. If the skin is extra-responsive to it, testosterone encourages hair growth on the upper lip, chin, chest, lower abdomen.
Physical features such as hair color, hair texture, hairline, skin, and varicose veins are inherited from your mother.
As a plastic surgeon sees it, there are structural reasons that people age differently. “Asians have a wider bone structure than a typical Caucasian face,” Dobryansky notes. “The soft-tissue loss is seen and felt to a lesser extent because of the wider structure.
Relevant paragraph from Wikipedia from the article on body odor below, but the TL;DR is that there's a gene called ABCC11 that is non-functional in 80 to 95 percent of East Asians. That allele determines both apocrine sweat gland size and activity, concentration of protein in apocrine sweat, and, oddly, wet-type vs.
Many Asians have naturally straight hair, but there is a significant group of us who do have naturally curly or wavy hair! However, because it's the norm to see straight and sleek hair, curly haired boys and girls tend to think that their hair is some kind of unruly straight hair that isn't behaving.