Fold the tongue and other genetic myths

Genetics is one of the fields of biology.In addition, the appearance of false myths with genetics as the protagonist does nothing but make its work and its dissemination even more difficult.If you want to know some of the most famous urban legends about genetics don't miss this post.

Roll your tongue

If you're the only one of your friends unable to roll your tongue, the answer is not in your genes.There are cases of twin brothers in which one could fold it and the other not.

Moreover, maybe your parents can do it and your children can too. The reason to be able to bend or not the language would be in the environment and, in some cases, can be related to the formation of the fetus in the womb.

The red-haired gene

Is there a gene that produces redheaded people? No.Legend has it that two red-haired parents have a 100% chance of having red-haired children, but that's a lie.

Fold the tongue and other genetic myths

Moreover, the gene that controls the red hair pigment itself has many variants, and is easily influenced by the genes of brown hair.So, two red-haired parents will have the same options that their children are red-haired than brown or even blond.It seems more difficult for them to have black hair.

The lobe of the ears

Here we can actually deny two myths: that there are two types of lobe (attached to the ear and loose) and that a gene determines what lobe each person has, but reality says that There is a wide variety of loose lobes and lobules stuck together, so there are no two unique categories-much less a gene that determines which we belong to.-Moreover, the most recent studies are n unable to say whether loose lobes or glued dominate to the ear.

Toes

Look at your feet. Which finger do you have longer, the fat or the second? It is said that a gene determines this, and although there have not been so many studies to demystify other legends about genetics, those that exist are contradictory.

Fold the tongue and other genetic myths

It could be a mutation that affects several genes, not just one, although the researchers suspect that the environmental environment could also be key here.

The thumbs

One of the parts of the body with more genetic myths is the thumbs.The first speaks of the way to put the thumb when we intertwine the hands is determined by a single gene, no matter if it is the left or right thumb.However, even identical twins can interlock their hands differently so we can rule out that the reason we put the thumb in one way or another is genetic.

Fold the tongue and other genetic myths

Another myth that affects the big toe is how we put it when lift it towards up , for example hitchhiking.Do the test with your thumb and those of more people, and you'll see that there are those who put it straight and whose thumb is bent (something known as highway thumb ) It is said that this is due to a gene, but the reality is that everything depends on the flexibility of each other's thumb.Nothing genetic.

The color of the eyes

It is said that a recessive gene causes some people to have blue eyes, so two blue-eyed parents can never have a dark-eyed child, but that is false, because the color of the eyes so determines the interaction between several different genes .The result of the combination of these genes is what makes us have brown, green, blue eyes or an eye of each color.

Image: Gideo n Tsang, henskechristine, Third Coast Daily, Sarah Reid.

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