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When a human egg and a human sperm combine how many chromosomes are there in the zygote?
Wiki User
∙ 11y ago
Sperm contains 23 chromosomes.
An egg contains 23 chromosomes.
The zygote (a fertilized egg) contains 46 chromosomes.
Read more: How_many_chromosomes_does_the_zygote_have_Following_fertilization
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoHuman eggs and sperm each have only have 23 chromosomes, half what is normal for the human body. When they join and form a zygote, the resulting zygote has 46 chromosomes, the correct number for the human body.
Wiki User
∙ 12y ago23 chromosomes..
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What portion of the sperm contains 23 chromosomes?
The sperm or the egg have 23 chromosomes. Humans have 46 chromosomes, so when these two combine they create a human zygote.
Is a zygote cell would you expect to be a haploid?
No - a zygote will be diploid. The sperm and egg are haploid - but they combine to create the zygote - which means it will have 2 sets of chromosomes.
How many chromosomes does a human sperm or egg cell contain?
The human egg or sperm cell is haploid and contains 23 chromosomes. After fertilization (egg and sperm fusion), the zygote will have 46 chromosomes (23 pairs).
How does fertilization restore the normal chromosomen number?
Each gamete, the sperm or the egg, is haploid and contains half the number of chromosomes of a normal cell. When the sperm and egg combine to form a zygote, the zygote becomes a diploid cell with the normal amount of chromosomes.
What kind of cell is formed when chromosomes from a sperm call and an egg cell combine?
A diploid cell called a zygote is formed with a sperm and egg fuse.
What is a zygote and how many chromsomes does it have?
A zygote is a cell that is the result of the fusion of an egg and a sperm. It has a total of 46 chromosomes in a genetically normal human.
What forms when a sperm and a ovum combine?
An zygote.
Why is it important to have half as many chromosomes as normal body cells?
The gametes must have half as many chromosomes as normal body cells because they unite to form a zygote, which is the first body cell of the new organism. For example, human body cells have 46 chromosomes and human gametes (sperm and egg cells) have 23 chromosomes. When the sperm fertilizes the egg, the zygote will have 46 chromosomes, and is the first body cell of the new human.
What characteristics of an egg cell and a sperm cell are critical to their ultimate function of combining to form a zygote?
The 23 chromosomes in each are definitely critical since they combine to form a healthy zygote with 46 chromosomes. Other than that, the tail called flagellum is necessary for the sperm cell to swim to the egg cell.
When sperm and egg cell combine a is formed?
Zygote
In the alternation of generations life cycle two gametes fuse together to form a?
Zygote with 46 chromosomes, The egg has 23, The sperm has 23. When they join together it's 46. (23+23=46) :))
How are the usual number of chromosomes restored during fertilization?
When the haploid sperm fertilizes the haploid egg, their chromosomes combine to form a new diploid nucleus in the first cell of the new offspring, which is called a zygote.
