Ever heard the phrase ‘you have your father’s eyes?’ Or ‘your son looks so much like you?’
Other than physical looks, there is a multitude of things that kids can gain from their paternal side. A father’s genes can determine what a child will inherit, from sure looks to diseases familiar to the family.
1. HEART PROBLEMS
Unfortunately, not all genetic material is just about determining whether you get your mom’s nose, your dad’s chin, or your grandfather’s famous crazy red hair. Men who carry the haplogroup I Y chromosome are 50% more likely to have heart disease and can pass this on to their sons (not great news). But, since it’s only found on the Y chromosome, dads can’t give the same risk to their daughters.
With over 700 gene sequences at play to determine a child’s height, it might be easier just to say that both the man and woman have a part in how tall their kid will be. These gene variants can make a significant difference; it can affect height by an entire inch, which is primary when you consider how much that can add or subtract from your height.
Sometimes, a rare variant in the gene sequence can drastically affect the child, swaying them towards their father’s height rather than their mother’s or a mix of the too. In this way, the man may have a slight effect on their child’s height.
3. MENTAL HEALTH PROBLEMS
It is common knowledge that mental health issues may run in the family, but if you have an older father than most, you may be more predisposed to have specific mental health complaints. Commonly, older men with schizophrenia or ADHD are more likely to pass their issue to their children, due to changes in their DNA as they age.
Older men are four times more likely, therefore, to pass on mental health problems, as their sperm will contain their new and mutated DNA, leading to the possibility of more complex issues.
Why don’t mothers’ DNA change with age? The answer is, they do. The difference is that women’s eggs are with them from birth, and therefore don’t change. While men’s sperm is produced all the time, a woman has limited eggs, and they don’t alter much.
However, older women are more likely to birth children with autism, and rare issues with genetics.
4. DENTAL COMPLAINTS
More bad news, gents. Male genes for dental health are expressed more than the ones from your mom. But this could be a good thing; if your mom had to have braces, but your dad’s teeth are pristine, you’re not as likely to need dental work yourself.
5. EYE COLOR
Eye color is a difficult one, since both the mother and father play roles in determining their child’s eye color. However, there are several indicators that the man may be more likely to decide the child’s eyeshade.
It is much more common for children to have dark eyes since it is the dominant gene. For a child to have light eyes is less frequent because it’s a recessive gene, and it requires influence from both sides of the family.
However, a dominant dark-eyed gene will win over the recessive gene in most instances. This means that if the father has dark colored eyes, it’s likely their child will also. Of course, this could just as quickly be the influence of the mother, but they tend to have equal input in the eye color lottery.
If a man is infertile, there are ways of getting around it. Men can take part in vitro fertilization to allow them to father a child, but if they do, they may still be making their sons more likely to be infertile.
In a study by the Journal of Human Reproduction, it was found that men who had been conceived through IVF treatment had a lower sperm count than those who had been conceived naturally.
This suggests that the fathers are passing on the fertilization issues to their children. Though the results aren’t entirely conclusive, it does show that it’s likely a father’s fertility problems can be handed down.
This is one of the more well-known things dads pass down to their kids for anyone who knows anything about genetics. Babies get a combination of chromosomes from both parents, but women only have X chromosomes, and so can only pass on an “X” s*x chromosome to their offspring. Men have XY chromosomes, and so can either pass on an “X” chromosome (which paired with the other “X” will make a girl) or pass on a “Y” chromosome (which will make a boy).
This also means that any genes “written” on a Y chromosome can only come from your father. Scientists call these Y-linked genes. (This is the other explanation for the remaining facts!)
Source: healthy-holistic-living.com, peacequarters.com