Question 1: It is said that girls are like their fathers and boys are like their mothers. Is this statement true?

There is indeed a saying that "children look more like the opposite sex of their parents". But in fact, from facial features such as eyes, nose and mouth to body features, children are genetic factors that inherit various physical elements from their parents at the same time. Because the influence of genetic factors obtained from mom or dad is the same, it is unscientific to say that the opposite sex is more influential. Therefore, although this statement is widely circulated, it has no scientific basis. I am afraid it is only judged by some features of the child's face.

question 2: my voice is rough. I am afraid that if I have a daughter, she will be like this?

Children's voices are usually very close to their parents, and their similarity is even more than their looks and bodies. Usually, a son's voice is very close to his father's, while a daughter's voice is very similar to his mother's.

The sound level, volume, quality and other aspects are not only related to the larynx, but also determined by the size of the nose, the size of the mouth, the length of the tongue, the bones of the face and other factors. Moreover, all these places inherit their parents' genes, so it is not surprising that sound is inherited. However, if the sound quality influenced by parents' physiological anatomical structure is not beautiful, most of it can be changed through acquired pronunciation training. Therefore, some people with poor voice conditions will change their voices through acquired pronunciation training.

question 3: the grandmother next door always scares me, saying that the more I don't want to pass on to my child, the more similar the child will look. Is it true?/You don't say.

whether you want it or not, the probability that all your characteristics are actually passed on to your children is the same. Whether a child embodies certain genetic characteristics mainly depends on whether this characteristic is dominant or recessive. The so-called dominant inheritance refers to the inheritance that can show its characteristics under the influence of one of the genetic factors; The so-called recessive inheritance refers to the inheritance that requires the genetic factors of father and mother to be paired to show their characteristics.

For example, if the mother is blood type B, the father is blood type A and the child is blood type O, then the type O inherited by the child is what we call recessive inheritance. That is to say, in fact, mother is BO type blood and father is AO type blood, and their O type genetic factors are paired and inherited by children. Therefore, we think that the shortcomings of parents' looks are more likely to be passed on to children, perhaps because we pay more attention to those places that are considered shortcomings, and we feel more like them.

question 4: my husband is a handsome guy, but I am plain-looking. I often can't help but think, what will the child grow up after birth? Will it be beautiful or just so-so?

it's hard to say which parent's characteristics are more easily passed on to children. Both parents have good looks, but the children are average-looking, or the phenomenon that both parents are not beautiful but the children are good-looking is often seen in real life. Facial features are also transmitted to children through genetic factors that carry the characteristics of various elements. In reality, some children's eyes, nose and mouth are very similar in shape to their mothers, but their layout and position are very similar to their fathers.

question 5: my husband has a big chin, so will our children?

This is definitely a dominant inheritance. Either parent has a prominent big chin, and nine times out of ten, the child will grow into a similar chin, which is very obvious.

question 6: my sister has a pair of 4-year-old twin sons. I am pregnant for 6 months now and I am also twins. I always thought that twins should look exactly alike, but my sister's children are not alike. Why is this? Will my children do the same?

twins are divided into identical twins and fraternal twins. The so-called identical twins are caused by the fertilized eggs that should form a child splitting in two in the middle of development. Because the genetic factors are exactly the same, their looks will be very similar, and they will generally be all boys or all girls. However, fraternal twins are caused by the simultaneous fertilization of two ovum cells with different sperm. Therefore, although fraternal twins are born at the same time, in genetics, the relationship with two children is actually equivalent to the relationship between brothers and sisters. Only half of their genetic factors are the same, so there will be differences in facial or physical characteristics.

question 7: when I was young, I got a lot of acne, so there are still some acne marks on my face. Will my children do the same in adolescence?

if both parents have suffered from acne, the prevalence rate of their children will be 2 times higher than that of those without family history.

Question 8: My skin color is not white, but my husband's skin is darker and a little rough. What will happen to our children's skin?

people have no choice. It always follows the natural law of parents' "neutral" color. For example, parents with dark skin will never have children with white skin; If one side is white and the other side is black, then most of the children will be given a "neutral" skin color that is neither white nor black after the "average" in the embryo, but there are also cases that are more biased towards one side. If the skin color is dark, pregnant women can eat more foods rich in vitamin C. Because vitamin C interferes with the formation of melanin in the skin, it can reduce the precipitation of melanin, and the baby's skin born in the future will be white, tender and delicate.

these foods rich in vitamin c include tomatoes, grapes, oranges, cauliflower, wax gourd, onions, garlic, apples, Rosa roxburghii, fresh dates and other vegetables and fruits, among which apples are the best. Apples are rich in vitamins and malic acid. Eating them often can increase hemoglobin, which not only makes the skin fine, white, red and tender, but also has excellent tonic effect on anemic women. It is the first choice fruit for pregnant women and child-rearing.

Question 9: Relatives and friends agree that my daughter looks the most like her uncle. Why?

The father and his biological brother share 5% of the same genetic factors, and so does the mother. The child's father or mother has 5% of the same genetic factors as the child. So children have 25% of the same genetic factors as uncles or aunts. Therefore, according to genetic analysis, it is not surprising that children look similar to uncles or aunts. If children look more like uncles or aunts than their parents, it may be because their similar parts are more obvious.

Question 1: Is the double eyelid easy to pass on to children or the single eyelid easy to pass on to children?

It is the double eyelids that are easily passed on to children. Because double eyelids are dominant and single eyelids are recessive, the genetic factors of double eyelids are more likely to appear on the surface. If both parents have single eyelids, the child should generally have single eyelids. If both parents have double eyelids, generally speaking, children should also have double eyelids, but occasionally there are single eyelids. The reason for this change is the same as the reason why couples with blood types A and B give birth to children with O blood. That is to say, although both parents have double eyelids, they all have single eyelid genetic factors. When the single eyelid genetic factors of both sides form a pair, the child becomes a single eyelid.

question 11: which characteristics of the shape, size and height of the nose will be passed on to children?

this problem is more complicated. Some of the characteristics of the nose belong to dominant inheritance, including wide and high, low and slightly upturned nose, flat nose root and upturned nose and other genetic factors. Others belong to recessive genetic factors. Including various genetic factors, such as the nose is ball-shaped, and the nose is vertically concave, which is relatively special and rare.

question 12: my lips are thick, but neither of my parents' families has thick lips. I wonder if it's the day after tomorrow. Getting married soon, if it is the day after tomorrow, will it be passed on to the next generation?

The thickness of lips is easily passed on to children. Although we don't know much about the inheritance of lips, we know that it is the dominant genetic factor that makes the upper lip thinner and the lower lip bulge. If either mother or father has these characteristics, generally speaking, it will be passed on to the child in the proportion of one in two.