0
Why is it important that gametes have half the usual number of chromosomes?
Wiki User
∙ 14y ago
So that the number of chromossomes of of the next generation don't change. In some living thins they do changed based on generation, such as plants, but in animals that reproduce sexually meiosis has to occur to keep the number of chromosomes of a species constant.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What are the cells that are used for reproduction and that contain half the usual number of chromosomes?
What we call gametes (egg or sperm cells) have half the number of chromosomes.
How many chromosome are in a egg?
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.
What is the process of cell division that results in the formation of cells with half the usual number of chromosomes?
The process of meiosis.
What is the process of division that results in the formation of cells with half the usual number of chromosomes?
The process of meiosis.
How many DNA molecules are in a chromosome just before mitiosis?
There are twice the usual number of chromosomes, but the same number of DNA molecules per chromosome.
What are the cells that are used for reproduction and that contain half the usual number of chromosomes?
What we call gametes (egg or sperm cells) have half the number of chromosomes.
Cells that contain half the usual number of chromosomes are?
A sperm cell and an egg cell. They combine to make a baby with full chromosomes.
How do gametes differ from their parent cell?
Gametes are sex cells - sperm and egg. Other cells are somatic cells - regular body and organ cells. Also, gametes have half the number of chromosomes as somatic cells do. This is because, when the zygote is formed (sperm and egg form together) they take their chromosomes together to make the number of chromosomes a somatic cell has.
What is the diploid number of the fruit fly?
a fruit fly has 4 pairs of chromosomes in every cell apart from gametes and usual exceptions.. red blood cells (no nucleus) etc
Why will meiosis ensure that offspring have the same chromosome number as parents?
In the process of fertilization, gametes (sperms from male and egg from female) fuse to form a zygote. Meiosis ensures that the number of chromosomes in each gamete is half the normal number in other non-gamete cells so that when the gametes fuse, the total number of chromosomes will once again add up to the usual number of chromosomes and not have twice the number instead.
Why do gametes only have half the usual number of chromosomes?
the division of sex cells occur in a different way from the cells of the other body part....... they undergo reduction division and there are stages of it.. the gametes have half the number of chromosomes (haploid) so that on fertilization it forms a correct human cell for further division and formation of bolus
How many chromosome are in a egg?
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 organism that reproduces sexually has a diploid number of 30 How many chromosomes will a gamete of this organism have?
A gamete has half the diploid number of chromosomes, so in this case, the gamete would have 15 chromosomes.
What is the usual number of chromosomes within a cell?
Cells are usually diploid and contain two of each chromosome. A normal human cell contains 46 chromosomes, however this number is dependent on the type of organism. For example, dogs have 78 chromosomes and cats have 38 chromosomes.
What is the process of cell division that results in the formation of cells with half the usual number of chromosomes?
The process of meiosis.
What is the process of division that results in the formation of cells with half the usual number of chromosomes?
The process of meiosis.
How many DNA molecules are in a chromosome just before mitiosis?
There are twice the usual number of chromosomes, but the same number of DNA molecules per chromosome.
