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Genetically speaking, the gender of a baby is determined by the presence of the 'Y' chromosome (or the absence of it).

If a Punnett square were to be drawn and a mono-hybrid cross carried out, you can see that the only chromosome the female (XX) can pass on is the X chromosome. The male (XY) can pass on either his 'X' or his 'Y'.

If the male passes on his X chromosome, the two chromosomes fuse to form XX, therefore becoming female. But if the male passes on his Y chromosome, XY is formed which is a male. Hence, the male always determines the gender of an offspring.

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What is the chromosome carried only by the sperm called?

The chromosome carried only by the sperm is called the Y chromosome, which determines the male gender when combined with the X chromosome from the egg during fertilization.


Which gamete determines the gender of the offspring in homosapians?

The sperm gamete determines the gender of the offspring in humans. Sperm carries either an X or a Y sex chromosome, while the egg always contains an X chromosome. If a sperm with an X chromosome fertilizes the egg, the offspring will be female (XX). If a sperm with a Y chromosome fertilizes the egg, the offspring will be male (XY).


Who makes the sex of a baby?

The sex of your baby is tottally dependant upon the male's sperm, each sperm has a specific sex chromosome, either a Y or an X . every egg of a female has only X sex chromosomes. When one sperm conjoins with one egg, the female gives her X chromosome and the male gives the chromosome (either X or Y) belonging to the sperm that made it to the egg first and will determine the sex. XX = Female XY = Male * All the things you hear about eating meat during your pregnancy will produce a boy and fruits will produce a girl are myth!


In human which sex chromosome determines if an offspring is a male or female?

In humans, which sex chromosome determines if an offspring is a male or female?


What is a Type of chromosome that detemines gender?

The type of chromosome that determines gender is called a sex chromosome. In humans, there are two sex chromosomes: X and Y. Typically, individuals with two X chromosomes (XX) are female, while those with one X and one Y chromosome (XY) are male. The presence of the Y chromosome triggers male sex development, while the absence of it leads to female development.

Related Questions

Who makes the sex of the baby?

The chromosome in the male's gamete determines the gender of the baby. If it is a Y chromosome, the baby will be a boy. If the chromosome is a X, the baby will be a girl.


Why does the male determine the gender of a baby?

The gender of a baby is determined by the father's sperm at the moment of fertilization. Sperm cells carry either an X or a Y chromosome, and the combination of chromosomes from the sperm and egg determines the baby's gender. If a sperm carrying an X chromosome fertilizes the egg, the baby will be female (XX); if a sperm carrying a Y chromosome fertilizes the egg, the baby will be male (XY).


How does the father determine the gender of a child?

The father determines the gender of a child through the contribution of his sperm during fertilization. Sperm carries either an X or Y chromosome, which combines with the mother's X chromosome to determine the baby's gender. If the sperm carries an X chromosome, the baby will be female, and if it carries a Y chromosome, the baby will be male.


Is it the guy's sperm that makes the gender of a baby?

Yes. Sperm carry either an X or a Y chromosome. The eggs from a female's ovaries is always X. If the sperm has an X chromosome, the baby will be female. If the sperm has a Y chromosome, the baby will be male.


Is husband reason of baby gender?

Yes, the male determines the sex of a baby. He possesses the either X or Y chromosome. The X is a girl I believe & the Y is a boy, I'm pretty sure that that's what they stand for. I'm positive that the male determines the sex of a baby though.


Which sex cell controls the sex of a baby?

I will explain, but I don't know why you put this in cat behavior. The X chromosome and Y chromosome control gender. If an embryo's two chromosomes are XX, it will be a girl. If the chromosomes are XY, it will be male. A pair of chromosomes have to have at least one X chromosome in it, but can also have a Y chromosome.


What sex chromosome does a male have?

The male sex chromosome is XY, and females are XX. The X comes from the female, and an X or a Y from the male. When they meet, that determines whether the baby will be a boy or a girl.


How do males contribute to determining the gender of a baby?

Males contribute to determining the gender of a baby through the sperm they provide during fertilization. Sperm carries either an X or Y chromosome, which combines with the X chromosome from the female's egg to determine the baby's gender. If the sperm carries an X chromosome, the baby will be female, and if it carries a Y chromosome, the baby will be male.


How do testosterone levels impact the gender of a baby?

Testosterone levels do not directly impact the gender of a baby. The gender of a baby is determined by the chromosomes inherited from the parents. Specifically, the presence of a Y chromosome from the father will result in a male baby, while the absence of a Y chromosome will result in a female baby. Testosterone levels may influence the development of male characteristics in a baby after conception, but they do not determine the baby's gender.


What is the chromosome carried only by the sperm called?

The chromosome carried only by the sperm is called the Y chromosome, which determines the male gender when combined with the X chromosome from the egg during fertilization.


Who determines the sex of the baby in humans?

The father determines the sex of the baby in humans. Sperm cells contain either an X or Y chromosome, and the sperm that fertilizes the egg will determine the sex of the baby. If the sperm carries an X chromosome, the baby will be female, and if it carries a Y chromosome, the baby will be male.


What determines if a pregnant women has a male or female?

The sperm can have either X or Y sex chromosome. If the sperm with X chromosome fertilize the ovum, you get female baby. If the sperm with Y chromosome fertilize the ovum, you get male baby. Ovum always has got X chromosome in it.