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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 :)

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โˆ™ 2010-04-25 23:13:37
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Q: How is the sex of a baby determined?
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Related Questions

When does the sex of the baby occur?

Gender is determined the moment of conception, the male also determines the sex of the baby


How is the sex of a baby made?

It is determined by the father's sperm


When is the baby sex determined?

around 5 months the sex can be detected through ultrasound


When will you know the sex of your baby in second life?

The sex of the baby can be determined at the time of purchase if a random birth package is being used, the sex of the baby will only be known at birth.


When can the baby sex be determined?

At about 12 weeks, the gender can be pronounced


When is the sex of a baby is determined?

In the second trimester baby's genitals are differentiated.


How far along must a woman be to figure out the sex of the baby?

The sex of your baby can be determined by ultrasound at 16 weeks. Doctors will usually do an ultrasound at 20 weeks.


What is the difference between 'sex-liked' and 'sex-determined'?

Sex-liked means liking sex and sex determined is the resolution to have sex.


Could you know the sex of the baby at eleven weeks?

Using genetic sampling of skin tissue the sex can be determined at any age.


4 What determines the sex of a baby at the time of fertilization?

The sex of a baby at fertilization is determined by the chromosomes the baby possesses. If these chromosomes are XY it's a boy. If they are XX, it's a girl. http://en.wikipedia.org/wiki/XY_sex-determination_system


What is the sex of a child when an ovum joins with a Y carrying a sperm?

Male XX= female xy=male it is at this time (conception) when the sex of the baby is determined


Is it possible to set sex of baby by test tube?

I believe you meant to ask is it possible to know the sex of a baby conceived by inviro fertilization also called test tube baby. Of course like a normal baby a test tube baby too has xx or xy chromosomes and the sex can be determined actively while the fetus is growing. Also like a normal baby ultrasonograph can reveal the sex of the child.


How is sex determined in humans?

The sex of a human offspring is determined by the sperm of the father.


What determines the sex of the sea turtle?

The sex of a baby sea turtle is determined by the temp of the sand. Cooler sand produces males and warmer sand produces females.


Is the sex of a second child determined by the sex of the first?

Are you asking if the sex of the second child is determined by the sex of the first child? No, naturally its a fifty-fifty chance.


Can you tell the sex of a 3 month pregnant woman?

You can tell the sex of the woman at any time (female), but the sex of the baby can be determined usually around 16-20 weeks into the pregnancy, or 4-5 months.


What determines the sex of an organism-?

The sex of an organism is determined by the sex chromosome.


The sex of a baby is determined?

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.


How can you tell the sex of the baby?

You can tell the sex of a baby by its DNA.


The sex of the offspring is determined by the female parents chromosomes?

No. The sex of the offspring is determined by the father's sperm. (whether it is x or y)


What is a baby's gender if he or she has XXY sex chromosomes?

Male - in humans the sex is determined by the presence of a Y chromosome. In other animals sex can be determined by the ratio of sex chromosomes, or the total number of chromosomes.


What happens to a baby if its born before the sex is developed?

The baby's sex is determined at conception, as the embryo develops into a fetus the sex organs also develop. A baby born so premature as to have undeveloped sex organs would also gave undeveloped pulmonary system, digestive system and nervous system which would mean she or he would not survive out side the womb.


The sex of the fetus is determined by the?

Man.


How early is your sex determined?

conception


How is a gender of a baby determined?

Its determined by their different body parts.