A boy inherits height about equally from both mother and father. Statistically, the average adult height of a boy will be the average of the Father's height and the Mother's Height + 5 inches. So, the average boy will be taller than his father if his mother is less than 5 inches shorter than the father.
If you are a man with average height, you can expect your son to be a few inches (centimeters) taller than you. This is because the regression line and the SD line both coincide at the average heights. For instance, a father with an average height of 67.7 inches (172cm) will have a 68.7-inch-tall (175cm-tall) son.
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!
I'd say it's an urban myth. "Always" is a very strong word. Of course there are cases where they don't. But normally, assuming no underlying genetic condition and assuming they don't have a 5'0" father and a 6'2" mother, you would expect the overwhelming majority of boys to grow up to be taller than their mothers.
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”
How Tall Should a 12 Year Old Be? We can only speak to national average heights here in North America, whereby, a 12 year old girl would be between 137 cm to 162 cm tall (4-1/2 to 5-1/3 feet). A 12 year old boy should be between 137 cm to 160 cm tall (4-1/2 to 5-1/4 feet). Can I still grow after puberty?
Changes in Boys
The growth spurt of boys is, on average, about 2 years later than that of girls. By age 16, most boys have stopped growing, but their muscles will continue to develop.
A major growth spurt happens at the time of puberty, usually between 8 to 13 years of age in girls and 10 to 15 years in boys. Puberty lasts about 2 to 5 years.
Yes they can if one of parents have tall genes in their side of the family.
Tallness is a recessive trait, short stature is dominant. This means, if two tall people mate they will likely have very tall children. But if a tall person and a short person mate, the short person's short gene will win out over the tall gene (unless the short person has a hidden gene for tallness.)
Just because we do not see a specific ancestral trait does not mean that he/she does not carry it. The more tall ancestors you have determines the likelihood of you being tall, however, if there is even one ancestor that carries the genetics of shortness you have a possibility of ending up short!
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.
Parents who are taller have a higher-than-expected number of sons. Conversely, parents who are shorter have a lower-than-expected number of sons (or a higher-than-expected number of daughters).
All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. The Supporting Evidence: Y-linked traits follow a clear paternal lineage.
According to the U.S. Food and Drug Administration, short stature means an estimated final height below 5 feet 3 inches for boys or 4 feet 11 inches for girls. The average height in the United States is 5 feet 8 inches for men and 5 feet 4 inches for women.
The expected average height of a healthy population should be 163 cm for women and 176.5 cm for men – as defined by the WHO growth reference standards. Interestingly, the global average height is 159.5 cm for women, and 171 cm for men – it's lower than we'd expect.
The average for males is considered to be 5.8 feet or 177 cm.
What can I do to become taller? Taking good care of yourself — eating well, exercising regularly, and getting plenty of rest — is the best way to stay healthy and help your body reach its natural potential. There's no magic pill for increasing height. In fact, your genes are the major determinant of how tall you'll be.
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.
This is about ~2.7 inches. The average phenotypic difference between siblings was about 7.2 centimeters (D). Therefore, to a first approximation the recapitulation of population-wide variation in a continuous quantitative trait within sibling cohorts seems to hold.