The child's appearance,
Like mom or dad?
From a genetic point of view, there are some characteristic genes on sex chromosomes. Sex chromosome X is much larger than sex chromosome Y, so there are many more genes on X chromosome than on Y chromosome.
The male sex chromosome is XY, where the X chromosome comes from the mother and the Y chromosome comes from the father. Because the Y chromosome contains few genes, the son will be more like his mother.
The sex chromosome of a woman is XX, one from her father and one from her mother. The X chromosome from the mother is often "hidden" by the X chromosome from the father, which is the mystery of "the daughter is like the father".
Like mother, like father?
80% of the baby's personality is determined when the mother is pregnant. Stimulating the baby's potential ability through reasonable benign stimulation is not only the first driving force for the baby's growth, but also lays a good foundation for his life.
Regarding the baby's IQ, the genes related to human intelligence are mainly concentrated on the X chromosome. Mother has two X chromosomes, while father has only 1, which means that mother's intelligence occupies a more important position in heredity. But in addition to genes, acquired factors also have a great influence on the IQ development of babies.
Mom is short, a little shorter?
Austrian geneticist Mendel believes that the genetic effect of mother on baby height will be greater than that of father.
Mom is tall, dad is short, and most babies are tall, at least not short; Mom is short and dad is tall. Most babies are of medium height and may be shorter. If the father is of medium height and the mother is short, the baby may be short. Therefore, the statement that "the mother is short and short" is too absolute.
Mom and dad are fat,
Children will be fat, too?
If one parent is obese, the probability that the baby is overweight is 40%; Both parents are obese, and the probability of obesity after the baby is born is higher.
In addition to genetic problems, acquired factors are the main reasons for the baby to develop into a fat person, such as overeating, loving sweets, wolfing down and other bad eating habits, as well as lifestyle that does not like walking.
This article first appeared in July-August, 2022, Health Times, "Son as mother, daughter as father?" 》
(Health Times)