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A baby has a sex long before it is a fetus. at the moment of conception, all DNA the human will have (sex, eye color, hair color, all gentic traits like that) is already present at that moment. Of course, actual reproductive organs come much later, but embryos do have genders

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14y ago

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What is used to tell what an offspring will turn out to be?

If the doctor can see a sex organ on the fetus using ultrasound, then that is a good way to tell. Otherwise, they can take a sample of amniotic fluid that surround the fetus, using a needle, then testing the fluid for male or female.


How is the sex of an individual determined?

Scientists do not determine the sex of a fetus. Science does, but scientists do not.


When can youdetermine the sex of a fetus?

18-20 weeks.


Is it true it takes a man to make a female fetus?

It takes a man and a woman to make any kind of human fetus.


How can you tell if your fetus is black or white?

Look at the parents. If you have had sex with a black man and a white man and don't know which is the father you will have to wait until the baby is born


Is the male or female more responsible for the sex of the fetus?

The male. He carries an X and Y chromosome. If he gives an X, the fetus is female. If he gives a Y, the fetus is male.


How do you sex and to get a boy?

Without specific and expensive medical intervention, you cannot predetermine the sex of a fetus by any means.


Why should you learn the sex of your fetus?

There are new blood tests that can determine the sex of a fetus at seven weeks. Finding out the gender of a baby can help expecting parents decide whether to test for serious sex-linked illnesses like muscular dystrophy and hemophillia.


Is there a blood test to determine sex in fetus?

You can't test the mother's blood to determine the sex of the fetus, and blood testing wouldn't terribly effective in determining sex even if you're testing the blood of the fetus because most red cells, which make up the majority of cells in blood, have no nuclei. Amniocentesis is, however, extremely effective for this purpose.


Can sperm be harmful to fetus during sex?

No, sperm is not harmful to a fetus during sex. The cervix acts as a barrier to protect the uterus and fetus from any external substances, including sperm. In fact, it is safe for pregnant women to engage in sexual activity unless advised otherwise by a healthcare provider.


How can one tell how far along they are in pregnancy?

One can tell how far along they are in pregnancy by having an ultrasound. An ultrasound measures the fetus and then compare that measurement to what an average fetus is. If it matches to a 3 week fetus it means that one is 3 weeks into pregnancy.


When can sex of fetus be determined?

I belive my doctor said sometimes as soon as 16 weeks