Dominant and Recessive Genes

Gene inheritance is a key point in our lives. Genes are responsible for the traits that we are likely to get from our parents and their parents. They are known under the name hereditary traits and there are more than 200 of them. Besides, there are dominant and recessive traits – that is why we tend to look like our fathers or mothers and have something of their character as well.

Dominant and recessive genes] are responsible for making us the way we are. Genes are known to be located on the specific DNA segments. A gene represents a groping of chromosomes and they, in their turn, are found in every cell’s nucleus. Every person’s body has got each gene in two copies and only eggs and sperms are singular. These copies are the ones that a father and a mother passed to us. Therefore, we resemble the former in some traits and the latter in others.

In most of the genes there are variations – they are called alleles. It is commonly that an individual generally inherits either the same alleles pair or different. When it comes to dominant and recessive traits, it is believed that dominant alleles represent dominant traits. However, this is not always so. It is possible that there are dominant alleles and alleles, expressing a trait, may be recessive. Therefore, many individuals have recessive traits.

You have seen these dominant and recessive genes, perhaps, without thinking about them. Here is the list of the most frequently met dominant and recessive traits in humans.

First of all, it is earlobe attachment. It is recessive gene that is in charge of attached earlobes and dominant – for unattached.

Dominant gene is responsible for the trick with rolling the lateral edges of the tongue together. The inheritance of a recessive gene means that a person cannot do such things.

Dominant and recessive genes are also responsible for the cleft and smooth chin accordingly.

The same goes for dimples – the presence of dimples means that a dominant gene is present in a person and in case you are not lucky to have this charming trait – then your gene is recessive.

Handedness also depends on the gene inherited. Dominant and recessive genes are responsible for a person being more skillful with one his hand or the other. The majority of people inherit dominant gene and therefore they are right handed.

Dominant and recessive genes also define your proneness to have straight or curly hair. The possessors of a dominant gene are curly heads and the ones with a recessive gene have straight hair accordingly.
Freckles are also the result of a presence of a dominant gene in the pair; while whose without these charming little things have apparently inherited both genes that are recessive.

Allergy is also a result of allergy gene inheritance. It is generally comes from one of the parents and there is a high chance that he or she is likely to pass this proneness to allergy to at least one of 4 kids. It is not necessarily that allergy will obligatory develop. Actually, the rate is 25% and it is more when both parents are allergic.

Color blindness is known as a genetic disorder when a recessive allele is present on the X chromosome. In women there are 2 X chromosome and one of them contains allele with normal vision. Men, on the other hand, have got only one X chromosome and, therefore, if they have got a colorblindness allele, a man is likely to be colorblind. Therefore, men are frequently colorblind and women are not.

Dominant and recessive genes, to cap it all, are responsible for the appearance of some traits in humans. Genes are responsible not only for the particulars of physical appearances but also for the emotional patters and health and illnesses proneness. It is hard to tell whether your child be like you or your spouse. There is so much to be discovered – it is a very deep and interesting topic and, although,