Eggs and sperms are gametes. They are haploid. Haploid means that they have half the regular number of chromosomes. This works really well because an egg and a sperm join together to begin a new organism which will then have the entire diploid number of chromosomes. A human body cell would have 46 chromosomes. Since a human egg cell is a reproductive cell (sex cell), it would contain only half the number of chromosomes as a body cell. Thus, a human egg cell would have 23 chromosomes.
A sex cell has half the number of chromosomes for a good reason. When two sex cells reproduce, they combine to form double the number of chromosomes. So when two cells with 23 chromosomes each reproduce, the offspring would have 46 chromosomes. To keep humans at 46 chromosomes per cell, sex cells are produced through meiosis, which is a process that creates cells with half the number of chromosomes.
An egg will have the X chromosome and the sperm will have an X or Y chromosome.
a girl
Y chromosome. When a sperm with a Y chromosome fertilizes an egg, the resulting offspring is male. On the other hand, if a sperm with an X chromosome fertilizes the egg, the offspring will be female.
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The sex chromosome typically carried by an ovum is X-chromosome. The sperm may carry either x or y sex chromosome.
23
23 chromosomes
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An egg will have the X chromosome and the sperm will have an X or Y chromosome.
23 in both Egg Cells and Sperm Cells.
If an egg is fertilized by a sperm containing a Y chromosome, the resulting fertilized egg will develop into a male organism. This is because the presence of the Y chromosome determines the development of male characteristics.
a girl
Y chromosome. When a sperm with a Y chromosome fertilizes an egg, the resulting offspring is male. On the other hand, if a sperm with an X chromosome fertilizes the egg, the offspring will be female.
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The sex chromosome typically carried by an ovum is X-chromosome. The sperm may carry either x or y sex chromosome.
It is the sperm that fertilizes the egg that will determine the sex of your baby. Some sperm carry the X-chromosome and some sperm carry the Y-chromosome. If an X-chromosome-carrying sperm fertilizes the egg, the baby will be a girl. If a Y-chromosome-carrying sperm fertilizes the egg, the baby will be a boy.
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).