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A cell undergoing meiosis with four chromosomes would look like this
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this represents the cell chromosomes once together then spliting then connecting with the on and pulling the cell membrane until it pinches shut and becomes daughter cells.
What else can I help you with?
Is a diploid organism formed in the fertilization or meiosis during sexual reproduction?
A diploid organism is formed during fertilization when a haploid sperm cell fertilizes a haploid egg cell to create a zygote with a complete set of chromosomes. Meiosis is the process that produces haploid gametes (sperm and eggs) in preparation for fertilization.
What are similarities and differences of mitosis and meiosis?
Mitosis vs. MeiosisBoth mitosis and meiosis are mechanisms that describe cell division. The difference is particularly noticeable when one looks at the DNA in the cell's nucleus. After mitosis, each of the daughter cells will have exact same DNA strands, while after meiosis each daughter cell will only have half of the DNA strands. (Sometimes the division is not exactly half/half, but that is not important for this answer). Because meiosis only has half the information that the parent cell had, the cell is (as far as we know) unable to reproduce by itself. The reason for meiosis is for reproduction of a multi-cellular organism as well as genetic diversity due to crossing over. One daughter cell (from the male of the species) will try to find a compatible daughter cell (from the female of the species) and fertilize it. This then becomes and embryo and the specie has successfully reproduced. And this is how you, the reader, came into existence.Other characteristics:Parent cell - full set of chromosomes in both mitosis and meiosis (2n).Number of divisions - mitosis 1; meiosis 2.Chromosome number of daughter cells - mitosis full set (2n) and meiosis half set (n).Crossing over - mitosis no; meiosis yesPaired homologues - mitosis no; meiosis yesDNA of daughter cells - mitosis identical to parent; meiosis daughter cells differentNumber of DNA replications - mitosis 1; meiosis 2Number of daughter cells - mitosis 2; meiosis 4Type of cells - mitosis somatic; meiosis sex cells
How do cells reproduce without meiosis?
Asexual reproduction in animals is usually by parthenogenisis. In such cases, the egg is usually produced without going through meiosis. The result may be female or male, depending on how sexuality is determined in the specific species. The species in which parthenogenisis has been observed include a variety of insects, fish, reptiles, birds and mammals. It can be induced artificially, and all cases observed in mammals have been artificial.
How many cells get produced in meiosis?
To answer this question, let's take a look at meiosis as a whole. Meiosis I: 1 Mother cell (with DNA that has been replicated) splits into two daughter cells (each are 2n). Meiosis II: Each of those 2 daughter cells split into two gametes (which are 1n each). Therefore at the end of meiosis 2, one daughter cell splits into two haploid cells. Remember, the mother cell (at the beginning of meiosis I) ends up splitting into a tetrad of haploid cells (ie. Mother cell splits into four haploid cells by completion of meiosis)
Are gametes in fungi meiosis or mitosis?
SomaticSomatic cells reproduce by mitosis. Gametes are produced by mieosis
After meiosis 1 how many chomosomes?
After meiosis I, the cell will have half the number of chromosomes as the original cell. This is because the chromosome number is halved during meiosis I, going from diploid to haploid.
How many times chromosomes replicate in meiosis?
They replicate before meiosis begins, as it is the division phase. The chromosomes duplicate during interphase which is right before the beginning of meiosis. After going through meiosis I the chromosomes DO NOT duplicate nor do they cross over they simply continue on. Hope this helps. :)
What are the two distinct of meiosis?
I think what you are asking is "What are the two distinct processes of meiosis?"At the beginning of meiosis, there is a diploid cell (chromosomes come in pairs) with duplicated chromosomes (each pair of chromosomes is duplicated). The cell undergoes two processes: Meiosis I and Meiosis II.Meiosis I produces two haploid cells (unpaired chromosomes), but the chromosomes are still duplicated. These two cells then undergo Meiosis II, in which the two haploid cells are split, with one set of unpaired chromosomes going to one and the other set of unpaired chromosomes to the other. The end result of Meiosis II is four haploid cells with unduplicated chromosomes.In short, when a cell undergoes the complete process of meiosis, a single diploid cell with duplicated chromosomes is turned into four haploid cells with unduplicated chromosomes.For a complete description of all the steps along the way, see this page and scroll down about 2/3 of the way: http://en.wikibooks.org/wiki/Adventist_Youth_Honors_Answer_Book/Health_and_Science/Heredity
What must the mother cell have before going through meiosis?
A mother cell, or a gamete must have chromosomes that have replicated. Any parent cell must replicate their chromosomes, forming two sets of sister chromatids. This is known as a diploid cell. A cell must be healthy, with functioning centrioles, undamaged chromosomal DNA.
Is a diploid organism formed in the fertilization or meiosis during sexual reproduction?
A diploid organism is formed during fertilization when a haploid sperm cell fertilizes a haploid egg cell to create a zygote with a complete set of chromosomes. Meiosis is the process that produces haploid gametes (sperm and eggs) in preparation for fertilization.
What is the difference the difference between mitosis and meiosis?
Mitosis produces 2 diploid cells and Meiosis produces 4 haploid cells and Mitosis involves 1 division while meiosis involes 2 divisoinsMitosis takes place within somatic cells (cells that make up the body), while meiosis takes place within gamete cells (sex cells). As such, meiosis produces more gamete cells, and mitosis produces somatic cells. Mitosis is the process which is responsible for replacing dead or wounded skin cells. Mitosis divides a single somatic cell into two daughter cells, while gametes are produced in fours; more specifically, one single cell produces four daughter cells.Mitosis the reproduction of body cells. After going through Mitosis, the new daughter cells will have the same number of chromosomes as the parent cells. Meiosis is the reproduction of reproductive/sex cells. After completing the process, the daughter cells have 1/2 the number of chromosomes as the parent cells.For example:Mitosis: Body cells begin with 46 chromosomes. The new daughter cells will have the same amount.Meiosis: Reproductive cell X (X being a variable) has 46 chromosomes. After completing meiosis, the daughter cells will have 23 chromosomes.
What and the difference between meiosis and mitosis?
Mitosis produces 2 diploid cells and Meiosis produces 4 haploid cells and Mitosis involves 1 division while meiosis involes 2 divisoinsMitosis takes place within somatic cells (cells that make up the body), while meiosis takes place within gamete cells (sex cells). As such, meiosis produces more gamete cells, and mitosis produces somatic cells. Mitosis is the process which is responsible for replacing dead or wounded skin cells. Mitosis divides a single somatic cell into two daughter cells, while gametes are produced in fours; more specifically, one single cell produces four daughter cells.Mitosis the reproduction of body cells. After going through Mitosis, the new daughter cells will have the same number of chromosomes as the parent cells. Meiosis is the reproduction of reproductive/sex cells. After completing the process, the daughter cells have 1/2 the number of chromosomes as the parent cells.For example:Mitosis: Body cells begin with 46 chromosomes. The new daughter cells will have the same amount.Meiosis: Reproductive cell X (X being a variable) has 46 chromosomes. After completing meiosis, the daughter cells will have 23 chromosomes.
How many times does the cell nucleus divid during meiosis?
Twice. When the cell starts off there are 46 chromosomes present. This mutliplies to 92, right before it is going to divide. Then you are left with two daugter cells that have 46 chromosomes each. The second part of meiosis, each of these cells breaks into two. And this will lead to having four daughter cells with 23 chrosomes each.
What are similarities and differences of mitosis and meiosis?
Mitosis vs. MeiosisBoth mitosis and meiosis are mechanisms that describe cell division. The difference is particularly noticeable when one looks at the DNA in the cell's nucleus. After mitosis, each of the daughter cells will have exact same DNA strands, while after meiosis each daughter cell will only have half of the DNA strands. (Sometimes the division is not exactly half/half, but that is not important for this answer). Because meiosis only has half the information that the parent cell had, the cell is (as far as we know) unable to reproduce by itself. The reason for meiosis is for reproduction of a multi-cellular organism as well as genetic diversity due to crossing over. One daughter cell (from the male of the species) will try to find a compatible daughter cell (from the female of the species) and fertilize it. This then becomes and embryo and the specie has successfully reproduced. And this is how you, the reader, came into existence.Other characteristics:Parent cell - full set of chromosomes in both mitosis and meiosis (2n).Number of divisions - mitosis 1; meiosis 2.Chromosome number of daughter cells - mitosis full set (2n) and meiosis half set (n).Crossing over - mitosis no; meiosis yesPaired homologues - mitosis no; meiosis yesDNA of daughter cells - mitosis identical to parent; meiosis daughter cells differentNumber of DNA replications - mitosis 1; meiosis 2Number of daughter cells - mitosis 2; meiosis 4Type of cells - mitosis somatic; meiosis sex cells
What is a map or drawing going through directions or instructions?
Directions
Can chromosomes be seen during mitosis?
Yes, as they are at their most condensed going through mitosis. Seen with a microscope, that is!
How are two chromosomes passed from the mother cell to two daughter cells?
During cell division, at the end of meiosis I, homologous chromosomes are separated and each daughter cell receives one chromosome from each pair. Then in meiosis II, the sister chromatids of each chromosome are separated, resulting in two daughter cells each receiving one chromatid. This ensures that each daughter cell has a complete set of two chromosomes.
