Why precious granddaughter grandmother more often?

The proportion of identical genes between grandmother and granddaughter is much higher than that of nephews, so girls have many similarities with grandmothers.

Telegraph said that Cambridge University scientists use genetic rules to understand the level of genetic similarity between a woman and children. The results showed that, on average, about 25% of her genes were identical to the children (both male and female).

(Artwork: Brachyservices)

However, the differences in the way in which X chromosomes are transmitted from women to the next generation means that some children will have a higher percentage of her genes than others.

The team analyzed the data that historians collected from seven societies around the world during the period from the 17th century to the 21st century to find out. They found that if a woman gives birth to a son and that child has a daughter, the same percentage of genes between her and her grandson is 31%. If the son gives birth to a son, the proportion of genes that are the same between her and her child drops to 23%. On the contrary, if a woman gives birth to a daughter, the grandchildren have 25% of her genes, regardless of whether they are male or female.

In the article published in the Proceedings of the Royal Society B , the team explained: ' The grandmother can identify genetic similarities with her with some characteristics on her body, such as sweat. or similar facial features '.

According to the Telegraph , if applying research results to the British royal family, it can be said that the daughter of Prince Andrew - Beatrice and Eugenie - will feel easier to capture the Queen's love than the two sons Prince Charles is William and Harry.