Which data should be used to determine whether men and women are the same in the Tang screening results
Tang screening is an examination performed by pregnant women during pregnancy. It mainly detects whether the fetus has chromosomal abnormalities such as Down syndrome. For many expectant mothers who want to know the gender of their fetus, Tang Si can also tell them the gender of their fetus. So, what data does the Tang screening result carry to determine the gender of the fetus? Next, we will explain it from several aspects.
Chromosome number and gender determination
The main content of the Tang screening test is chromosomal abnormalities, whether the fetus has Down syndrome, but the number of chromosomes can also tell us the gender of the fetus. Normally, female somatic cells have XX chromosomes and male somatic cells have XY chromosomes. During the growth of the fetus, XX and XY will determine the gender of the fetus respectively.
So, for the Tang screening results, we can determine the gender of the fetus based on the type and number of chromosomes carried by the fetus. If the result shows two X chromosomes, you are female, and if the result shows one X and one Y chromosome, you are male.
Fetal gender genetic testing
Some advanced Tang screening tests also include fetal genetic testing. By analyzing fetal DNA, the gender of the fetus can be determined more accurately. This testing method is more accurate and reliable in determining the gender of the fetus than the number of chromosomes.
The core technologies of this detection method are Next Generation Sequencing (NGS, next-generation high-throughput sequencing technology) and Multiplex Ligation-dependent Probe Amplification (MLPA, multiplex ligation-dependent probe amplification technology). By using these two technologies to analyze fetal DNA, the gender determination results can be obtained from the Tang screening results.
Pregnancy ultrasound scan
The Tang screening results can also determine the gender of the fetus from another angle, that is, through ultrasound scanning during pregnancy. Generally, during the B-ultrasound examination performed at 16 to 20 weeks of pregnancy, the doctor can determine the gender of the fetus by looking at the characteristics of the fetus\’s external genitals.
However, it should be noted that there may be certain errors in determining the gender of the fetus through ultrasound examination, because the pregnancy period, maternal physical condition, fetal posture, etc. may affect the accuracy of the determination, and the results of determining the gender of the fetus are not as good as those of genetic testing. The results are reliable.
Notes
It should be noted that if you want to determine the gender of the fetus, it is generally recommended to combine the Tang screening with other methods, such as ultrasound during pregnancy. At the same time, it should be noted that Tang screening is not a testing method specifically used to determine the gender of the fetus. Its main purpose is to detect whether the fetus has chromosomal abnormalities.
Finally, we need to remind you that determining the gender of the fetus is only possible during pregnancy.One of the items checked is not necessary. Moreover, in some countries and regions, fetal sex determination is prohibited.
Summary
To sum up, in the Tang screening results, the data to determine the gender of the fetus can be obtained from the number of chromosomes carried by the fetus, genetic testing and pregnancy ultrasound examination. However, it should be noted that Tang Screen is not a testing method specifically used to determine the gender of the fetus, and the results are not absolutely reliable. Ultimately, determining the gender of the fetus can be confirmed through a variety of methods, and what mothers need to do is to be cautious and conduct examinations according to the doctor\’s recommendations.
