From the time we are born, we as humans have a special bond with our fathers. Typically, dads are known for teaching their sons how to throw a baseball or teaching their daughters how to change a flat tire, but fathers also pass on many other traits that literally make us who we are.
Genetically speaking, we bear more resemblance to our fathers than we do our mothers. Researchers at UNC School of Medicine studying gene expression, or the genes level of activity at creating RNA found that the genes being studied were parent-of-origin specific, with 60% of the genes activity level coming from the father’s side. Although we inherit the same amount of DNA from each parent, the father’s side has more influence on the features a child will develop.
Let’s take a closer look at what we can thank our fathers for this Father’s Day.
The most well known “gift” from dad, a child’s sex is highly dependent on the father’s sperm. The women’s egg carries the X chromosome that pairs with the chromosome from the sperm. If the sperm is carrying an X chromosome and links with the mother’s X chromosome, the baby will be a girl, while a Y chromosome brings a baby boy.
The color of your eyes is determined by dominant and recessive genes. Dominant genes will produce brown eye color, while recessive genes produce lighter colors like blue or green. If both of your parents have recessive genes, you have a chance to inherit blue or green eyes. however, if your father has brown eyes, you will likely inherit them as well.
On to more traits from dominant and recessive genes, hair texture is also influenced by our genes. The gene for full, thick hair is dominant while the gene for thinner or balding hair is recessive. So, if your father has a thick head of hair and your mother has thinner hair, you are likely to have flowy locks like your father.
Although the mother can pass on mental health conditions such as schizophrenia, ADHD or bipolar disorder to their children, older fathers are more likely to pass different kinds of genetic mutations to their children. Older men continue to produce new sperm, while mothers have all their eggs from the time they are born, therefore, fathers who have mental health conditions are more likely to pass them on.
Additionally, children that are diagnosed with ADHD are highly likely to have a parent or blood relative that also has it. Researchers need to conduct larger studies to identify the specific genes associated with ADHD, however, there is no genetic test to determine if someone has ADHD. It’s often helpful for the child to know someone like them to look up to and who can help with tools and tactics for success.
According to a study published in the Journal of Physical Anthropology, children can inherit their tooth size, jaw size, and shape of their teeth from either parent. However, due to the fact that the father’s genes are more dominant than the mothers, you can thank your father for your pearly whites!
We have a lot to thank dads for this Father’s Day. Our fathers have made us into the people we are today—with a lot of help from mom, of course! We thank fathers everywhere for their guidance, knowledge, and most importantly, their good genes.
What traits did you inherit from your dad? Leave a comment and let us know!