can u explain mitosis and meiosis in a simple way that i can understand?

Question

when the teacher says all of the stuff...to me she's speaking a different language....is there a simplier way to help me understand..i appreciat all answers..thanks

Answer 1

http://www.johnkyrk.com/mitosis.html
This is a great animation of mitosis.

http://www.johnkyrk.com/meiosis.html

and the same for meiosis.

Answer 2

I was just studying this. Mitosis is the division of the nucleus of a body cell, and see the stages in tiramasu's answer. Meiosis is the division of the reproductive cell, or gamete. it's almost the same. it starts out in prophase with chromosomes jumbled up (chromatin.) In metaphase, the chromosomes line up at the equator, but in tetrads (two pairs next to each other.) Then in anaphase, the pairs(not the chromosomes) are pulled apart, so half the pairs go to one side, and the other half go to the other. They divide. Then the next part is like mitosis, except you end up with half the number of chromosomes. These stages, in which the two cells divide again, are prophase 2- telophase 2, with no interphase in the middle. Remember that mitosis is in body cells and meiosis in reproductiv cells.

Answer 3

Mitosis is cell division. One cell becomes 2. It takes different stages to get there, and specific things happen in each stage...
Interphase (inter = between; before mitosis occurs)
Prophase (pro = first; chromatin condenses, gearing up for mitosis)
Metaphase (meta = middle; chromosomes line up at the middle of the cell)
Anaphase (paired chromatids start moving away from each other)
Telophase (tel = distance; chromatids are far apart at the poles of the cell)
The offspring of the division is identical to the original cell.

Meiosis is cell division in sex cells only (sperm, eggs). It's more complicated than mitosis, but the basic idea is similar. The goal is to get to half the number of chromosomes found in an adult. That's because when fertilization occurs, each parent contributes 1/2 the chromosomes. So a sex cell has "n" chromosomes while a normal adult has "2n"

Answer 4

Simple answer, remember that each cell is normally diploid (2n), meaning it has two copies of each chromosome.
Mitosis= 2n to 4n, divide into two cells each 2n.
Meiosis= 2n to 4n, divide into two cells each 2n, then without DNA replication each of two cells divides again to get four total cells each 1n.
Mitosis is when a cell replicates its DNA content (2n to 4n) and then divides into two, with each of the two daughter cells receiving a diploid DNA content (2n). All the cellular material is divided equally as well, so start with 23 chromosomes, replicate to 46, then split evenly back to 23 for each cell. Meiosis is a reductive division, or it is mitosis occuring twice but the second time DNA replication does not occur so that the resulting cell is haploid and has only one set of chromosomes (n).

Answer 5

Use the phrase IPMAT to remember the phases. As far as remembering what happens in each of the phases, it is just a memory thing.