It's a fairly common misconception that a man's beard is inherited directly from his father. The truth is that beards are just like most other genetically derived features: they can come from either side of the family. The unique feature of beards, obviously, is that they don't appear until maturity.
While the role of DNA is not yet fully understood, scientists have found that a marker in the LNX1 gene on chromosome 4 plays a role in facial hair growth. Specifically, variations in this gene seem to influence how thickly (or sparsely) your facial hair grows.
Is Hair Color Inherited from Mother or Father? Hair color comes from both parents through the chromosomes passed onto their child. The 46 chromosomes (23 from each parent) have genes made up of DNA with instructions of what traits a child will inherit.
Ethnicity
A study on The male beard hair and facial skin – challenges for shaving reveal that Chinese, Mexican, and Native American men tend to have less facial hair than Caucasian men [2].
Your race can also influence your beard growth. Caucasians and African Americans can usually grow thicker beards, while Asian men have a harder time developing a full beard.
It's a fairly common misconception that a man's beard is inherited directly from his father. The truth is that beards are just like most other genetically derived features: they can come from either side of the family. The unique feature of beards, obviously, is that they don't appear until maturity.
Because boys have the sex chromosomes XY, they must inherit their Y chromosome from their father. This means they inherit all the genes on this chromosome, including things like sperm production and other exclusively male traits.
Unlike nuclear DNA, which comes from both parents, mitochondrial DNA comes only from the mother.
Your genes are one of the main factors in how thick or thin your facial hair is. “Men have hairs on their face that are programmed to respond to testosterone, and when they get that signal around puberty, they transition from fine hair to thicker hair,” Dr. Anthony explains. “But how thick it is depends on genetics.”
Genetics and hormones are the main factors that determine how quickly and fully a person's beard will grow. Their lifestyle and habits may also affect how their beard grows. Testosterone is a hormone that affects the growth of facial hair, and its levels can vary.
Genetically, you actually carry more of your mother's genes than your father's. That's because of little organelles that live within your cells, the mitochondria, which you only receive from your mother.
Boys, on the other hand, only receive a Y chromosome from their father and an X chromosome from their mother.
Physical features such as hair color, hair texture, hairline, skin, and varicose veins are inherited from your mother.
Virtues such as honesty, integrity and tolerance are most likely to come from mothers while courage, laziness and a good sense of direction come from fathers, a study found.
The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby's DNA comes from the mother and half comes from the father.
Sometimes children end up looking exactly like one parent, or even closely mirroring a sibling, and sometimes they don't resemble anyone in the family. It's all entirely possible. Kids share 50% of their DNA with each of their parents and siblings, so there's plenty of room for variation.
The answer is simple: genetics. You are made up of half your father's DNA and half your mother's. Your mother's DNA is probably more dominant than your father's with regard to facial hair growth because it comes from her side of the family.
Most adolescent boys first notice facial hair between the ages of 13-16 years.
Your beard will grow based on your genetics but diet plays a role too. If your other hair is thick and healthy, you probably are doing fine and just need to wait.
“The ethnicity with the least amount of terminal hair is Asian, whereas people of Hispanic and Middle Eastern descent typically have the most. Other ethnicities fall somewhere in between. So what's normal, hair-wise, for you might not be normal for someone of a different ethnic background.”
Black people have the lowest growth rate of hair but the highest eumelanin content. Breakage is increased or faster in this hair type. This group also has smaller hair cuticles than other ethnicities.
African hair has the lowest growth rate. Hair growth rate and hair diameter were reported to be associated with cuticle interscale distance.
Your children inherit their eye colors from you and your partner. It's a combination of mom and dad's eye colors – generally, the color is determined by this mix and whether the genes are dominant or recessive. Every child carries two copies of every gene – one comes from mom, and the other comes from dad.