GĐXH - One person expressed doubts about whether the child was his son or not. Because, some even hinted that his son looked more like his uncle than his father.
Dang A Quan is an appraiser with many years of experience in the profession at a DNA testing center in China.
During her work, she has handled many cases of paternity DNA testing.
Among them, the story of a man named Vuong made Dang A Quan remember it forever.
Mr. Vuong is 1.68 meters tall and his wife is no more than 1.65 meters tall, while his son is over 1.8 meters tall. He is glad that his son has the ideal height like his younger brother. The boy's uncle is 1.78 meters tall.
However, because of this difference, many neighbors and friends often ask him why his son is so much taller than his parents.
One person even expressed doubts about whether the child was Mr. Vuong's son. Someone even hinted that his son looked more like his uncle than his father.
Gradually, these questions became a "thorn" in Mr. Vuong's heart.
He secretly took his brother's sample and brought his son to Dang A Quan's DNA testing center for a bloodline test.
Because the son was over 1.8 meters tall while the parents were only over 1.6 meters tall, the man doubted his bloodline and the child's. Photo: Sohu
After 10 days, the test results showed that the child was Mr. Vuong's biological son. His son and his younger brother only had an uncle-niece relationship.
Even though the man received the test results, he was still confused.
Dang A Quan advised Mr. Vuong that parents' genes are not the only factor affecting children's height.
Many studies have shown that children can grow taller than their parents with "artificial assistance".
Parents' genes actually only determine 70%, while other factors account for 30% of the child's height.
6 factors that determine a child's height
Hereditary
Genes are not the only factor that predicts a person's height. In some cases, children can be much taller than their parents and other relatives.
Currently, there is no way to know exactly how tall a child will be as an adult, but it is possible to make predictions based on the height of the parents.
The calculation is to add the height of the father and mother, divide by 2, then subtract 7.5 cm if the child is a girl or keep the same value if it is a boy.
Nutrition
A proper diet, including total calories, carbohydrates, protein, fat, vitamins and minerals, can maximize a child's growth potential.
Sex
Boys generally grow slower than girls due to differences in puberty milestones. However, adult males tend to be an average of 14 cm taller than females.
Genes are not the only factor that predicts a person's height. Illustration photo
Hormones
During puberty, hormones are essential to regulate body growth. These include thyroid hormones, growth and sex hormones such as testosterone and estrogen.
Abnormalities in these hormones can alter overall growth and height.
Children with hypothyroidism or pituitary disorders may be shorter than average compared to their parents. Rarely, hormonal disorders cause children to be taller than normal.
Congenital disorders
Certain congenital conditions can affect a child's growth.
For example, osteochondrodysplasia is a genetic abnormality in the development of connective tissue, bone, or cartilage. The syndrome causes short stature and uneven growth of the trunk and limbs.
Another congenital disorder that causes a baby to delay puberty and not reach full height is Turner syndrome.
Unlike osteochondrodysplasia, Turner syndrome does not run in families.
Motor
Regular exercise contributes to height growth. Children should maintain at least 30 minutes to an hour of moderate physical activity such as swimming, jumping rope, hanging on a horizontal bar... every day.
Source: https://giadinh.suckhoedoisong.vn/bo-len-lut-lay-mau-vat-cua-con-trai-va-em-trai-minh-di-xet-nghiem-adn-172250307163036992.htm
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