Contents:
- Medical Video: Who Do You Like Better, Mom or Dad? | 100 Kids | HiHo Kids
- Genes are dominant and recessive, determining your physical appearance
- Pupil eye color
- Hair color and shape
- Physical characteristics
- How do you know which physical characteristics are dominant in your family?
Medical Video: Who Do You Like Better, Mom or Dad? | 100 Kids | HiHo Kids
When you look in the mirror, have you ever asked where the eye color you have now? Do you look like father or mother? Or not even both? If the color of your eyes or other physical form turns out to be not the same as what your parents had, about where did the physical characteristics come from?
Genes are dominant and recessive, determining your physical appearance
In theory, it is estimated that there are 60 thousand to 100 thousand genes - which are formed from DNA - in the human body. All of these genes gather and form chromosomes. Chromosomes that are owned by normal healthy people are 46 chromosomes consisting of 23 maternal chromosomes and 23 father chromosomes.
In the study of genetics, there are two genetic traits, namely genes that are dominant and recessive genes. When father's genes and maternal genes meet, genes will unite and produce new genes. These integrated genes determine your shape, color, and physical appearance.
For example, for eye color, one gets a blue eye color gene from the father while getting a mother's gene gives a brown color to the eye, then what color will be the eye color of the child? This depends on the nature of both the father and mother genes, whether the gene is dominant or recessive.
Genes that are dominant are genes that usually appear more often on a person's body and are passed on to future generations. While recessive genes tend to appear rarely and will disappear within a few generations. There are 3 gene properties, namely:
- Dominant-dominant, because both genes of both parents are dominant
- Dominant-recessive, that is, one of the genes of a dominant and recessive parent
- Recessive-recessive, where both genes obtained from parents are recessive genes
READ ALSO: Gen Changes Due to the Environment, How Can You?
Pupil eye color
If your mother has black eyes, so does dad, but you have light brown eyes. Can you then conclude that you are not their child? Of course not, this can happen if there is a recessive-recessive gene in your body.
In fact, the dark color of the eye is dominant, but it is possible for a child to get a recessive-recessive gene and this is derived from his grandmother or grandfather.Eye color is determined by how much melanin or brown pigment is on the iris. Someone who has a dark eye color, may actually have blue or even blue in the eyes, but the most and dominating are dark colors. Therefore, children who have different eye colors from their father, mother, and other siblings may have recessive genes.
READ ALSO: A Long-Term Vegetarian Diet Can Trigger Gen Mutations
Hair color and shape
Just like eye color, the shape of straight and curly hair is also determined by the genetic traits that children receive from their parents. In general, black hair color is dominant compared to other colors. But like eye color, the hair color you have may not be black but the color between your parents' hair color.
It also depends on the dominant pigment in the body. Genes do not directly determine the color of hair and eyes, but affect melanin and pigmentation in the body which then determines the color of one's hair or eyes.
In addition, curly hair is also known as a dominant gene compared to straight hair or even bald hair.
READ ALSO: Is it Really Human Behavior Is a Default from Birth?
Physical characteristics
Do you have dimples on the cheeks and have thick lips? The physical form is a form that has the dominant gene properties. Other facial characteristics such as the shape of the eyebrows that are not symmetrical, and growing tapered hair on the forehead, are thought to be formed from genes that are dominant and handed down to the next generation.
How do you know which physical characteristics are dominant in your family?
You can estimate which physical characteristics are dominant or recessive in the family. Try taking photos of your extended family and then look at each face of your family member. From the photo you can see the physical characteristics that appear most often in your family, this can be considered as the dominant trait and will be passed down to your next generation.
