Mitosis vs Meosis?

Question

I dont understand their different in telophase (mitosis) and telophase II (meiosis)...i search in internet and there like 2N and 1N....what is the N stand for

Answer 1

mitosis occurs in asexual reproduction(single parent) while meiosis occurs in sexual reproduction(a pair) and N might be the nucleus where the chromosomes consisting the genes are found but i wouldn't want to guess more and waste your time reading it. just go to this web www.skool.co.uk and see what it gives you. good luck!!

Answer 2

This question sounds an awful lot like homework, but I'll be generous ;) -Mitosis keeps chromosome number, meiosis halves it. -Mitosis produces 2 daughter cells in one division, meiosis produces 4 daughter cells in a double division. -Homologous chromosomes pair up and exchange genes (crossing over) in meiosis, they do nothing like that in mitosis. -Meiosis can only occur in diploid cells (where there is two of each chromosome), mitosis can occur in any eukaryotic cell (note: prokaryots, i.e. bacteria don't use either of these - they divide by binary fission!) -Mitosis occurs for various purposes, including growth, repair and asexual reproduction. Meiosis is to generate sex cells. Of course there are similarities as well. Apart from the differences mentioned above, the two processes follow similar steps like spindle formation, chromosome line-up along the equator, separation of sister chromatids (in case you didn't know, in a cell ready for division, each chromosome consists of TWO identical DNA molecules, called sister chromatids); in meiosis the separation of chromatids occurs in the second division (the first division is to separate the members of chromosome pairs). And then, when all the separation is done, the daughter cells are reorganised in the same way, building up new nuclear membranes and nucleoli, synthesising the necessary organelles and unpacking chromosomes in the newly formed cells.

Answer 3

Mitosis is a cell breaking in two to form two separate, identical to the original cell and eachother, unless something went wrong. Meiosis is a cell breaking in two to form two cells with half the chromosomes of the original cell, unless something went wrong.
Telophase in mitsosis is the formation of a new cell wall for each new cell and the final separation. Telophase II is the same process except that it is creating two cells with half the chromosomes of the original cell, rather than complete sets.

Answer 4

N is the number of chromosomes. It varies depending on the species. For humans, n=23, I think.

If you can find diagrams of mitosis and meiosis, look at the difference in how the chromosomes line up during metaphase in each of those. That should help.

Answer 5

In mitosis, the chromosomes are all completely duplicated so that each cell has a complete set.
In meiosis, the cell splits but each keeps half, so that when the egg is fertilized (the sperm having the other half) the ovum will have the proper number.
http://en.wikipedia.org/wiki/Meiosis
Always use Wikipedia!