Mitosis and meiosis?

Question

can anyone tell me the difference between mitosis and meiosis? has it got sumin to do with homozygous and hetrozygous?thanx

Answer 1

Mitosis is the process of which a cell replicates itself. This is like if u cut urself and it heals. However Meiosis is the replication of s*x cells (sperm and ovum.) This is different b/c it involves the same process twice to create 4 cells with the correct amount of chromosomes. it kinda has to do w/ homozy and heterozy but the deal more w/ DNA and cells do deal w/ that but it is more in depth. If u want more info email me.

Answer 2

Mitosis is normal cell division (1 cell becomes 2) maintaining the normal amount of chromosome pairs 23. Two of each chromosome, 46 in total (Diploid).

Meiosis is cell division for reproduction, creating 4 gametes with 23 chromosomes each, one of each chromosome (haploid) no pairs. Moreover the DNA is recombinated. And only one of the 2 s*x 'determing chromosomes' is present. X or Y.

This is the situation in humans. Other species have diverent amounts of chromosomes but the main principle stands.

Answer 3

Yeah, I think it does, but not 100% sure what, sorry.

They're both types of cell divisions - mitosis produces 2 daughter cells which are both diploids (have the full 46 chromosomes) and genetically identical to the original cell. It produces cells for growth and repair.

Meiosis produces 4 daughter cells that are haploids (only have 23 chromosomes), so are not identical to the original cell because they have half the number of chromosomes. It produces s*x cells, eg egg and sperm.

Hope that helps

Answer 4

In biology or life science, meiosis (pronounced my-oh-sis or mee-oh-sis) is a process of reduction division in which the number of chromosomes per cell is cut in half. In animals, meiosis always results in the formation of gametes. The word "meiosis" comes from the Greek verb meioun, meaning "to make small," since it results in a reduction in chromosome number in the gamete cell.

Mitosis is the process by which a cell separates the chromosomes in its cell nucleus, into two identical sets in two daughter nuclei.[1] It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two daughter cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of the cell cycle - the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.