How sex is determine on a fetus?

Answer 1

There are basically two ways (1) Invasive technique such as a process known as anmiocentisis, which can be used to determine the sex of the fetus and if there is any genetic or gestation problems. (2) Non Invasive Technique such as 3D ultrasound imaging. This method is very safe, but the catch is that it can only be performed when the unborn is at least 2 months plus, and at times the results are not accurate.

And most importantly, these or similar processes are BANNED in countries like India where the sex ratio is highly skewed. And moreover, let there be an element of SURPRISE. It is very rewarding.

Ultra sound can determine the sex of a fetus after 18 weeks, and is usually pretty accurate.

It is determined upon conception, one of the many gifts from above.

By getting either a X or a Y chromosone. XX is girl, XY is boy.

Use baby gender prediction kit for checking the gender of baby while pregnancy

http://www.thepediatriccare.com/product/mother_store/B003YT6KEO/Pregnancy_Gender_Predictor_Test.html

At conception. If a Y-containing sperm fertilizes the egg, it will be a male. If an X-containing sperm fertilizes the egg, it will be a female.

Answer 2

It's determined by the genetic chromosome of the sperm. Women have only one X chromosome in the egg (both egg and sperm have 23 pairs of chromosomes, which unite to form 46). On the other hand, men have either X or Y chromosomes.

If an egg (X chromosome) joins with an X chromosome sperm, the result will be a girl. If an egg (X chromosome) joins with a Y chromosome sperm, the result will be a boy.

In other words: the guy determines the sex of a baby :)

Answer 3

Chorionic Villus Sampling (CVS)

This diagnostic test is usually performed between 8 and 11 weeks gestation, sometimes as late as 13 weeks. This is generally a test for people who have a high risk of genetic abnormalities. Test results are available within 7 to 14 days. Miscarriage rate from CVS is about 4%, recent studies indicate that if the CVS is done before 10 weeks gestation there is an added risk (.5% to 1.7%) of limb deformity, and about 3% CVS is associated with serious decline in amniotic fluid protection. There is a greater incidence of false positives because of the differences between the cellular genetic material of the choirionic villi and the fetus. There is a small chance that the sex they determine is wrong as well. Amniocentisis This diagnostic test is performed as early as 9 weeks and for diagnostic purposes, 18 weeks gestation. There is a risk of 1-1.5% miscarriage and 1% chance of other pregnancy complications (infection, premature labor, injury to the fetus, cord, or placenta, rupture of membranes, etc.). The tests take about 2-4 weeks to run. There is a small chance that the sex they tell you is incorrect. Ultrasound While ultrasound can be performed at any stage of pregnancy for the purpose of finding out the sex it is best done between 18 and 26 weeks. Most care providers will not give an ultrasound for the specific purpose of finding out the sex, and the American College of OB/GYNs has issued a statement against routine ultrasound exposure during pregnancy. However, most physicians do not heed this warning. Adequate studies on ultrasound safety have not been done, but we do know that ultrasound exposure can change the way the cell reproduces and moves. There have also been studies indicating that ultrasound heats up the cells. This method is the most frequent for finding out the sex of a baby, however, it is the least accurate. Accuracy depends on several factors: baby's cooperation, gestational age, technician's ability, etc.

Answer 4

No, the baby's sex is determined by its inherited chromosomes (XX for female or XY for male), though the physical characteristics of gender develop over time during pregnancy. An embryo is first recognizable at about the 10th day after conception. However, the full expression of sex characteristics isn't until about 70th day or 10th week of gestation, at which point the reproductive organs should have formed. Female ovaries and male testes are indistinguishable in the early fetus, but in males the testes drop downward while in the female they remain in the body. In rare cases, an imbalance of androgen absorption can occur, producing hermaphroditic characteristics (where the fetus retains aspects of both sexes) or preventing the expression of male characteristics entirely.

Answer 5

Man.