Why are most girls bad at science? Is there any scientific basis for it?

Related news: In 2014, the University of New South Wales in Australia announced a scientific study. They used fruit flies as experimental subjects. By measuring and observing the body shapes of fruit flies and their offspring, they discovered the body shapes of fruit fly offspring. Male flies that mate with females for the first time are the same size as males that mate with females later, but not males that mate later.

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What is paternal inheritance?

Paternal inheritance originates from Western mythology. It mainly refers to the fact that offspring can inherit the characteristics of the previous partner of one of the parents. Later, this experiment was used on mammals abroad, and rumors were spread to spread rumors. They gave an example: The children of remarried people in history will have some of the characteristics of their previous husbands, such as some of the reasons why the marriage of Edward, the Black Prince of England, was questioned in 1361. Edward III's heir married the beautiful Kentish maiden Joan, who had been married before. Their descendants are not thought to be of full Plantagenet ancestry.

A gray-and-white sow mated with a dark brown wild boar in the British countryside and gave birth to offspring. A few months later, the sow mated with another local pure white boar and gave birth to another group of puppies. Piglets, but these little piglets have dark brown bristles, a bit like the dark brown wild boar that they mated with before. Thus, the theory of "paternal inheritance" was proposed for the first time.

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Humans also have the theory of paternal inheritance

In 1997, Professor Lu Yuming, a Chinese scholar at the University of Oxford in the United Kingdom, discovered that there was fetal DNA in the blood of pregnant women. This discovery was published in the UK's top medical academic journal "The Lancet" and became the theoretical basis for non-invasive prenatal testing. Subsequent studies have also found that the placental barrier has no ability to detect cells from both the mother and the fetus. That is to say, both maternal cells and fetal cells can freely pass through the placental barrier. Therefore, 90% of pregnant women have defects in their bodies. Cells obtained from the fetus, more than half of which mothers carry with them for decades after delivery, know that half of the genetic information expressed by these fetal cells comes from the father. Therefore, some people speculate based on this that as long as the mother has been pregnant and had a child, or even had an abortion, it is possible that the next born baby will show the phenomenon of "paternal inheritance".

Do humans really inherit from their father?

We can only wait for more rigorous scientific experiments to prove it.