Though it's probable that your real height is close to your predicted height, this isn't always the case. It's entirely possible for two short parents to have a tall child, and vice versa. It's just more likely that the child of short people will end up vertically challenged.
Answer and Explanation: A child can grow taller than their parents since some of the genes passed down generations are dominant, while others are recessive.
A combination of genetics and external factors can affect how tall a child will grow. Health experts believe that 80% of a person's height is genetic. This means the height of biological parents can be an indicator of a child's height, although this is not always a reliable predictor.
Scientists estimate that about 80 percent of an individual's height is determined by the DNA sequence variations they have inherited, but which genes these changes are in and what they do to affect height are only partially understood.
Chances are you'll be around the same height as your parents. If one parent is tall and one short, then you're likely to end up somewhere in between. But you could be taller or shorter, too. Boy, there are a lot of "buts" when it comes to height!
Here is a good way to estimate this based on mom and dad's adult height. For Boys: Add 5 inches to mom's height and average this with dad's. Ex: if mom is 5'4” you would add 5 inches to make 5'9” and then average with dad's height of 5'11” and your little boy's predicted genetic height is 5'10”
It's a common mistake that someone should be as tall as their parents. The fact is, our height is controlled by hundreds or even thousands of different genes, some make us shorter and some make us taller. Which ones you get from your parents is totally random. That's why not all siblings are the same height.
My uncle's parents,/my grandparents are 5′2 and 5′10 (my grandpa was 5′11 formerly, but lost an inch with age), and he's 6ft tall. Funnily enough though, his brother, my dad is (only) 5′8. So really, you can be any height, including 6ft+, no matter what heights your parents are.
Are children usually taller than their parents? A. The results vary from child to child and family to family, and depend on genes and environmental factors, especially nutrition. Doctors often use a fairly simple formula to predict the adult height of a child based on the heights of the parents.
Doubling a child's height at age 2 can provide an estimate of how tall that child will be in adulthood. (Boys are usually a little taller than that number and girls a little shorter.)
At what age do girls stop growing? Girls tend to have a major growth spurt between the ages of 10 and 14. Most will have reached their adult height by the time they are 14 or 15 years old. This major growth spurt happens during the phase of physical and psychosocial development known as puberty.
The trait "tall" is dominant (T) while "short" is recessive (t).
Constitutional delay in growth and puberty (A child is short during most of childhood but will have late onset of puberty and end up in the typical height range as an adult because the child will have more time to grow.)
That is, for boys you can explain about 64 percent of the variation in adult height by knowing height at age 4. This is a reasonably strong correlation, and means that kids who are tall when they're 4 will likely be tall as adults.
Because boys have the sex chromosomes XY, they must inherit their Y chromosome from their father. This means they inherit all the genes on this chromosome, including things like sperm production and other exclusively male traits.
We find that firstborn children are taller than children of higher birth order: The height-for-age gap for third (or higher)-order children is twice the gap for children second in birth order.
The actual spurt was then smaller and, moreover, puberty occurred earlier. In the category of children with lower BMI and later onset of puberty, the spurt was all the stronger. Those whose puberty was delayed also had several extra years to grow in, and quite simply ended up taller.
Scientists at the the University of Exeter conducted a study to find out what factors determine a person's height. They discovered that one fifth of the genetic factors that cause height to vary between siblings is that the smaller brothers and sisters have 'simply inherited a big batch of short genes.
Height is a complex trait, it is determined by hundreds of different genes. We cannot yet accurately predict the height of a person just by looking at his/her DNA. If you got by chance more gene variants for high stature than the rest of your family, that would explain why you are so much taller than your relatives.
Unlike nuclear DNA, which comes from both parents, mitochondrial DNA comes only from the mother.