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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

How many months do you have to be to determine the sex of the baby?

the sex of the baby is determined at six months


When is the sex of a baby is determined?

In the second trimester baby's genitals are differentiated.


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 can the baby sex be determined?

At about 12 weeks, the gender can be pronounced


What is the sex of the fetus if the heartbeat is 160?

The sex of a baby can only be determined by the actual birth of a baby, or during an ultrasound. There is no way of telling what the sex of a baby is by it's heartbeat.


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.


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.


Is it fair to blame the mother for the sex of the baby?

No. The gender of the baby is determined by the dominant genes in the males sperm.


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.


How baby's sex is determined?

The babies sex is determined by the sperm. The egg has XX chromosome and each sperm cell is either a XX or XY chromosome. So which ever sperm cell reaches the egg and implants determines the sex. If the sperm was an XX chromosome the baby would be a girl, if the sperm was XY chromosome the baby will be a boy. Hope this helps!

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