How will my baby be when he is born

What color of eyes will my baby have? Will he be blond or brown? Will he have a hole in his chin like a father? ... These are questions that parents ask themselves from the moment they the one that comes out positive in the pregnancy test. There is great curiosity to know who the baby will look like

There is great curiosity to know who the baby will look like, and even though an ultrasound shows us his face, we can not have a definitive idea until it is born, and we will even have to wait a few weeks as the babies change a lot during the first days.

Who the baby will look like when it is born

DNA is what defines the appearance of the baby, but what is DNA? It is a double chain that extends in spiral and that is formed by about 30,000 genes. DNA is organized into structures called chromosomes.

During fertilization the 23 chromosomes of the mother's ovum join the 23 chromosomes of the father's sperm. This fusion produces a unique and unrepeatable combination of 46 chromosomes. No other person in the world, not even a family member, will have the same DNA, except identical twins.

The newborn baby will have half of the genes inherited from his mother and half from the father. But, it is possible that the baby looks more physically to one or the other, why? Some genes are stronger than others and 'win the game' over others.

- The eyes: In the case of the eyes, although the baby inherits the color gene of eyes of both parents, the color will be defined by the dominant gene. That is, the brown eyes have a dominant character and the blue or green recessive. That is, if a parent has light eyes and a dark one, the baby is more likely to be dark. If both have brown eyes, the baby will have the same color, although there may be surprises if an ancestor had clear eyes.

- Skin color: It is in the same case brown skin, which is dominant compared to clear skin, and even the baldness gene is dominant in men and recessive in women.

- Height: As for the height of the baby, genetics has a lot to say. If the parents are tall, it is possible that the baby is also older, in the same way if they are short. However, genetics alone will not define the height of the boy or girl, other factors such as nutrition or possible diseases that may be involved also intervene.

- Intelligence: Scientists do not agree on whether intelligence is inherited or is the product of education and the environment in which the child grows and evolves. The reality is that there are cases of all kinds: children with an intelligence quotient of gifted children of parents with normal intelligence or vice versa.