How sex of embryo can be determined?

The sex of an embryo is determined by the sex chromosomes. Humans have two sex chromosomes, X and Y. Females have two X chromosomes (XX), while males have one X chromosome and one Y chromosome (XY). The Y chromosome contains the gene SRY (sex-determining region Y), which triggers the development of male characteristics.

The sex of an embryo is determined at the moment of fertilization. If the sperm that fertilizes the egg carries an X chromosome, the embryo will be female. If the sperm carries a Y chromosome, the embryo will be male.

There are a few ways to determine the sex of an embryo. One way is through genetic testing. This can be done by taking a sample of cells from the embryo and analyzing the chromosomes. Another way to determine the sex of an embryo is through ultrasound. This is a non-invasive procedure that uses sound waves to create images of the embryo. If the embryo is male, the ultrasound will show the presence of a penis. If the embryo is female, the ultrasound will not show the presence of a penis.

The sex of an embryo can also be determined through amniocentesis. This is a procedure in which a needle is inserted into the amniotic sac and a sample of amniotic fluid is withdrawn. The amniotic fluid can then be tested for the presence of the SRY gene. If the SRY gene is present, the embryo is male. If the SRY gene is not present, the embryo is female.

Amniocentesis is a more invasive procedure than ultrasound, and it carries a small risk of miscarriage. However, it is a more accurate way to determine the sex of an embryo.