Calculator for boys and girls

summary

People are sensitive to the issue of having boys and girls. Many families prefer boys. But giving birth to boys and girls is beyond our control. It depends on the combination of sperm and egg. But now there is a kind of calculator for giving birth to boys and girls. It's said that it can calculate whether to give birth to boys or girls. Is it true? Is it accurate? Let's have a look.

Calculator for boys and girls

First, there are 23 pairs of chromosomes carrying genetic material in every cell (including germ cells) of the human body. Among them, 22 pairs are autosomes, which determine all genetic information except sex, and the other pair is sex chromosomes, which determine the sex of the fetus. There is no gender difference between men and women. One pair of sex chromosomes in male is composed of X chromosome and Y chromosome (22 + XY in male), and one pair of sex chromosomes in female is X chromosome (22 + XX in female). Half of the 23 pairs of chromosomes come from the father and the other half from the mother.

Second: the probability of giving birth to boys and girls: in theory, the ratio of boys to girls is 1:1. If there are brothers and sisters in both sides' families, the next generation will be female; one man and two women, the next generation will be two men and one woman. Whether it's male or female, or personal habits, it's related to a certain probability. If men drink less beer and so on, the probability of having a boy will increase, especially men should pay special attention not to drink Coca Cola and other carbonated drinks during childbearing period, because these carbonated drinks can make the Y chromosome in male sperm lose vitality, thus reducing the probability of having a boy. Therefore, giving birth to boys and girls calculator can not dominate all oh, giving birth to boys and girls also depends on the probability oh.

Third: the criterion of giving birth to boys and girls calculator is based on Heluo number, I Ching mathematics, Dayan number, calendar calculation and deduction. Pregnant couples can calculate the gender of their baby according to the criterion of giving birth to boys and girls calculator. As soon as the 2014 boys' and girls' calculator is published on the Internet, it is everywhere. However, the 2014 boys' and girls' calculator is not recorded in any relevant literature, so its authenticity has no verifiable source. Therefore, Xiaobian thinks that we should not indulge in and believe the 2014 boys' and girls' calculator!

matters needing attention

Under normal circumstances, pregnancy days and gestational weeks are calculated from the date of the first day of the last menstruation, which is inconsistent with the actual pregnancy time. The actual pregnancy time is the ovulation period after the last menstruation. The last menstruation was from January 10, 2012 to May 18, 2012, 129 days of pregnancy, 18 weeks + 3 days. The due date of delivery is October 17, 2012. It is suggested to check pregnancy on time. Full term pregnancy is about 280 days (about 40 weeks), and it is normal to deliver in the first two weeks or the second two weeks after the due date.