What Is The Difference Between Mitosis And Meiosis?

Answer 1

Mitosis means that one cell reproduces creating two daughter cells that are identical to the parent cell

Meiosis mean that one cell splits into two cells with each cell only having half the genetic material of the parent cell.

So for example when sperm cells are created by meiosis the parent cell has the gene XY and the daughter cells one would get X and one would get Y.

Whereas when new cells are created by mitosis both would get XY.

Answer 2

Message:

Well, as you may already know, the purpose of both mitosis and meiosis is to take one cell and make two cells. Before the cells do this though, they have to make sure that a few things are in order. Obviously, there has to be enough stuff for the 2 cells to each be able to live independently. so, there has to be duplication of a lot of stuff before the first cell (let's call it the parent) divides. One of these things is the genome. These are the chromosomes which are made up of DNA. Once the DNA replicates (makes 2 copies of everything from what the parent originally had), the cell can divide. There are now 4 chromosomes of each type, we started out with our usual 2 of each (most organisms have 2 of each chromosome and they differ slightly from each other-this becomes important for meiosis), then when everything duplicated, we got 4!

In MITOSIS, the 2 cells that come out of the division (lets call them the daughters), are EXACTLY the same in genetic makeup as the original mother cell. They have the very same DNA and therefore make the same proteins and therefore the cells behave the same.

In MEIOSIS on the other hand, the cells are not the same at all. And in fact, this is the point of meiosis - to make new types of cells. You may know that eggs and sperm are products of meiosis, but you not only get a mixing of genes from your mother (from the egg) and father (from the sperm), but the genes inside the egg and sperm are pre-mixed because of meiosis. Thus, genetic diversity!, and an explanation for why you have traits given to you from your grandmother through your father, even though your father may not have that trait (he carries it in his genes for later mixing). This may be a complicated issue in itself but since we have 2 of every chromosome and therefore 2 of every gene (even before the DNA replication that preceeds mitosis), there's a chance that the 2 copies of the same gene are different, one of which shows up in your father and one which you have that you got from your grandmother throuh your father. The mixing, by the way comes about because after the DNA replicates in preparation for cell division. This is neat and involves chromosomes breaking apart and joining back together.

Answer 3

Mitosis is the regenerating of cells. Meiosis is cell chromosomes that were born with the same amount. Example: Meiosis is we all have 46 Chromosomes in the human body. Mitosis is the regeneration of cells...say your fingernails, or hair. You know how you clip them and they keep growing back. Well.. that's mitosis!

Answer 4

Mitosis produce 2 identical diploid cell from 1 diploid cell and meiosis produce 4 different haploid cell from one diploid cell.

Meiosis also creates genetic variation from crossing-over.

Meiosis consists of two succesives neclear divisions while mitosis consists of only one.

Answer 5

In biology, meiosis is the process that allows one diploid cell to divide in a special way to generate haploid cells in eukaryotes. The word "meiosis" comes from the Greek meioun, meaning "to make smaller," since it results in a reduction in chromosome number.

Meiosis is essential for sexual reproduction. It therefore occurs in most eukaryotes, including single-celled organisms. A few eukaryotes, notably the Bdelloid rotifers, have lost the ability to carry out meiosis and acquired the ability to reproduce by parthenogenesis. Meiosis does not occur in archaea or prokaryotes, which reproduce by asexual cell division processes.

During meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA called chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called gametes. Each gamete contains one complete set of chromosomes, or half of the genetic content of the original cell. These resultant haploid cells can fuse with other haploid cells of the opposite gender or mating type during fertilization to create a new diploid cell, or zygote. Thus, the division mechanism of meiosis is a reciprocal process to the joining of two genomes that occurs at fertilization. Because the chromosomes of each parent undergo genetic recombination during meiosis, each gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA. In other words, meiosis is the process that produces genetic variation.

Biochemically, meiosis uses some of the same mechanisms employed during mitosis to accomplish the redistribution of chromosomes. There are several features unique to meiosis, most importantly the pairing and recombination between homologous chromosomes, which enable them to separate from each other.

Mitosis is the process by which a cell separates its duplicated genome into two identical halves. It is generally followed immediately by cytokinesis which divides the cytoplasm and cell membrane. This results in two identical daughter cells with a roughly equal distribution of organelles and other cellular components. Mitosis and cytokinesis together is defined as the mitotic (M) phase of the cell cycle, the division of the mother cell into two daughter cells, each the genetic equivalent of the parent cell.

Answer 6

MEIOSIS : It take place in the gametic cells ( sperm and ova ) . These cells division lead to the appearance two daughter cells those have Half no of chromosomes then the normal one

Human being have 23 pairs of chromosome which means total number of chromosomes are 46. Therefore gameticcells have 23 chromosome one from each pair and also known as haploid cells.

These Cells become DIPLOID ( those have full pair of chromosome) afer the fertilization with othe opposite sex gametic cells

MITOSIS : It usually take place in the Somatic cells other the the gametic cells. Its daughter cell have the same number of the chromosome to ther parent cell

Answer 7

mitosis is when cells split and meiosis is when 2 cells come together? just trying to be a smart mexican here lol

Answer 8

we're on that chapter now in biology. but i have no idea what the difference is.

Answer 9

http://www.madsci.org/posts/archives/mar97/853201643.Cb.r.html

Answer 10

i knew that once ago...