A number of factors affect a baby’s physical appearance, determining whether the child will resemble the intended mother, a surrogate, or someone else entirely. First, we’ll cover the basic genetics and trait inheritance data, and then we’ll find out which type of surrogacy makes the baby resemble the surrogate.
The Fundamentals of Gene Inheritance
DNA is the building block of human genes, which are arranged into structures known as chromosomes. 46 chromosomes, or 23 pairs of chromosomes, are inherited by each baby from their parents; 23 pairs come from the sperm and 23 from the egg. For example, the X and Y chromosomes are one set of sex chromosomes that will determine the baby’s sex.
The main factor influencing a baby’s appearance, such as eye color, hair color and texture, height, body shape, etc., is the distinct assemblage of all the genes from its biological mother and father that are united as the egg and sperm grow.
Therefore, children often resemble both of their “biological” parents because of the mixing of their DNA.
Traditional vs. Gestational Surrogacy
Traditional surrogacy and gestational surrogacy are the two primary types of surrogacy.
In the traditional approach, the eggs of the surrogate are utilized in conjunction with the sperm of the intended father or the donor in order to form the embryo of the child. This means that the surrogate is the biological mother of the child.
When it comes to gestational surrogacy, the surrogate mother is not linked to the kid in any way. The egg and sperm that are used in in vitro fertilization (IVF) are not from the surrogate but rather come from the intended parents.
In a nutshell, the appearance of the baby’s biological parents is indeed the single most essential factor in determining the appearance of a surrogate kid, as it is with any baby. If you take into account the source of the egg and sperm, you can get a good idea of what a child would look like.
Read more about: Does a surrogate mother share blood with the baby?
Read more about: Can You Be a Surrogate After C-Section
Link:
https://www.americansurrogacy.com/surrogate/baby-look-like-surrogate-mother
https://surrogatesteps.com/surrogate-baby-appearance/