Is blonde hair a result of inbreeding?

No, they don't. Blonde hair seems to have appeared more than once in humans. Which means that different blondes trace back their blonde hair to different ancestors. This is actually true of a lot of different traits.

thetech.org - Do all blonde people have a common ancestor? - The Tech Interactive

Is walking good after prostate surgery?

Be gentle with yourself as you rehabilitate from your surgery. Give yourself time to heal but stay active with time to rest in between. Walking is...

Last updated Aug 2, 2020

Can zinc reduce prostate size?

The prostate gland stores zinc, which not only prevents prostate enlargement but may also help to shrink a prostate gland that's already swollen.

Last updated May 31, 2019

Imagine Your Moment Of Freedom!

Fluxactive Complete is conveniently packed with over 14 essential prostate powerhouse herbs, vitamins and grade A nutrients which work synergistically to help you support a healthy prostate faster

Learn More »

Promotion

No, they don’t. Blonde hair seems to have appeared more than once in humans. Which means that different blondes trace back their blonde hair to different ancestors. This is actually true of a lot of different traits. For example, red hair appears to have come from many different ancestors. The same is true for some serious diseases like cystic fibrosis. But not every trait is like this. Humans with blue eyes seem to have all come from a single ancestor, for example. Scientists figure these things out by looking at people’s DNA. If a group of humans share the same ancestor, then their DNA will show that they get their trait in the same way. If all blonde people shared a common ancestor, for example, then they would all have the same DNA difference that leads to blonde hair. But this is not the case! It seems that Europeans ended up with blonde hair in a number of different ways. But note the “it seems.” The genetics of hair color is still pretty murky in Europeans, so we can’t draw any strong conclusions just yet. The same is not true for the 5-10% of people on the Solomon Islands who have blonde hair. There is an obvious and distinct genetic difference that leads to their blonde hair.1 And Europeans do not share this genetic difference.

Hair Color and DNA

Your DNA has the instructions for making and running you. These instructions are found in the form of genes. And each gene has the instructions for one small part of you. However, most hair color is too complicated for a single gene. In most cases it looks like many genes all work together to give you your hair color. What this means is that there are many different combinations of genes that can lead to a certain hair color. Which also means not all people with the same hair color came from a single ancestor. An exception to this rule is blonde people from the Solomon Islands. Their blonde hair all seems to share a common genetic difference. So the most likely explanation is that they all share the same blonde ancestor. This genetic difference (a mutation in the TYRP1 gene) is also not found in Europeans. This means that this genetic difference arose in an ancestor distinct from blonde humans in Europe. In other words, people from the Solomon Islands aren’t blonde because of a European sailor who marooned there hundreds of years ago. They got their genetic difference the old fashioned way—through mutation.

How do I stop prostate frequent urination at night?

Ulchaker also has more specific suggestions. Limit caffeine intake. Caffeine is the No. ... Limit alcohol intake. Consuming alcohol in the evening...

Last updated Aug 24, 2019

What drinks help prostate?

Both green tea and hibiscus tea are among the top drinks for prostate health. Both types of tea contain potent antioxidants. Studies show that...

Last updated Mar 22, 2021

Promotion

New Traits

One way that new traits can arise in a population is when there is a DNA change, or mutation, that gets passed to the next generation. There are lots of ways to generate these mutations. Sometimes a cell makes a mistake when it is copying its DNA or DNA gets damaged from chemicals, radiation, or some other agent. If that mistake is in an egg or a sperm cell, then it can be passed on to a person’s offspring. Imagine that this mistake is in the TYRP1 gene. It changes a C to a T at a certain position and this results in a person having blonde hair. We now have our blonde ancestor. This is what happened in the Solomon Islands. Someone developed this DNA change and passed it down to his or her children. Not all blonde people have the same blonde ancestor. (Image: Oliver Foerstner / Shutterstock.com) Of course now we have one person and a few descendants that have this difference that leads to blonde hair. But even then we just have a few people with the genetic difference. Something had to happen for blonde hair to become so common in the Solomon Island population. That something could be due to an advantage of having blonde hair, or simple luck. If blonde hair had an advantage, then blondes would have more kids than darker haired people. Over time, their numbers would increase. Alternatively, it could be that one of the few founding members of the islands happened to have the blonde mutation. When the island was populated by these founders, blondes would become common just by chance. In this case, blondes would make up a significant part of the population even without an advantage. So there you have it. All blondes do not share the same common ancestor. Blonde hair has appeared at different times and in different ways in the human population.

thetech.org - Do all blonde people have a common ancestor? - The Tech Interactive

How do I know if I am infertile male?

How is male infertility diagnosed? Sperm count (semen analysis). At least 2 semen samples are taken on separate days. ... Blood tests. Your...

Last updated Oct 30, 2021

How long does ashwagandha take to balance hormones?

4 weeks How Long Should I Take Adaptogens for Hormone Imbalance? In order for adaptogenic herbs to work on your body, you need to use them daily,...

Last updated Aug 23, 2019

Promotion

What is a good well rating?

Typical numbers for well recovery rates (if measured honestly over a 24-hour period) run from a fraction of a gallon per minute (a terribly poor...

Last updated Feb 28, 2022

Imagine Your Moment Of Freedom!

Fluxactive Complete is conveniently packed with over 14 essential prostate powerhouse herbs, vitamins and grade A nutrients which work synergistically to help you support a healthy prostate faster

Learn More »

Promotion

Is there medication for shy bladder?

Examples of medicines prescribed to treat shy bladder include: anxiety-relieving medications, such as benzodiazepines like alprazolam (Xanax) or...

Last updated Apr 17, 2022