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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 :)
Jessie Zieme
Wiki User
∙ 9y agoThe 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!
Wiki User
∙ 13y agoThe father determines the sex, if they pass on an Y chromosome or not.
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Why does the father ultimately determine thesex if the baby?
The sex of a child is determined by the father because the genes that determine sex come from the male sperm.
Do genes on a chromosome determine whether a baby is a boy or a girl?
yes particular one's do which are the xy chromasones
How can you determine a sex of a pregnancy?
The only way to control what sex the baby will have you have to have a IVF at the clinic. There is no natural way to control this.
Can a woman get a blood test and find out the unborn babys DNA?
No the blood test will determine the DNA of the mother not the DNA of the baby
How does meiosis contribute to the genetic traits of a ReeBop offspring?
Meiosis produces the genetic material that will be paired with the genetic material of the partner. This will determine the traits the baby inherits.
How were albinos formed?
albinos are formed when two sexs make a baby while female is in pyriods
What is sexs?
When a males penis push there way to a female’s vagaina or An*l
Should I have sexs?
yes
Grabbing of the breasts during sexs mean?
im happy
Sexs are the human male and female genders.?
yes yes yes
Why do apples stay fresher in different wrappings?
because people have sexs with them
Do woman have both sexs?
No a woman is only one sex, one gender.
How do monitor lizards reproduce?
it has sexs with another horned lizard.
Is it possible to determine the gender of a baby at a 14-week ultrasound?
is usually the most common procedure used to determine a baby
What is the best way to determine if the baby requires supplemental oxygen?
Placing an oximeter on the baby's right hand or wrist is the best way to determine if a baby requires supplemental oxygen.
What is the best way to determine if a baby requires supplemental oxygen?
Placing an oximeter on the baby's right hand or wrist is the best way to determine if a baby requires supplemental oxygen.
What is 2 ways a karyotype can be used before a baby is born?
It is used to determine the sex of the baby and also to determine any abnormalities in chromosome.
