Compare and contrast what happens in mitosis and meiosis and discuss the importance of each process to a living organism.

Meiosis and mitosis describes the process by which cells divide,

either by asexual or sexual reproduction to produce a new organism.

Meiosis is a form of cell division that produces gametes in humans

these are egg cells and sperms, each with reduced or halved number of

chromosomes. The number of chromosomes is restored when two gametes

fuse together to form a zygote. A cell with two copies of each

chromosome is called diploid cell and a cell with one copy of each

chromosome is called a haploid cell. Meioses produces haploid daughter

cells that are genetically different from each other and from the

parent cell. However, mitosis is a form of cell division that produces

daughter cells identical to the parent during repair or growth. Each

cell contains the same genetic code as the parent cell, it is able to

do this because it has copied it’s own chromosomes prior to cell

division. Meiosis consists of two divisions whilst mitosis is followed

in one division; both these processes involve the stages of

interphase, prophase, metaphase, anaphase and telophase.

Meiosis allows cell variation and genetic differences between each

cell whereas mitosis is an exact replication of each cell. There are

three main ways meiosis produces genetic variation, this through

independent assortment, crossing over and random fertilization.

Why Is Mitosis And Meiosis Important To A Living Organism

The cell is the basic unit of all life. All living things - - tigers, trees, elephants, and men - - are made up of cells. A cell is alive - - as alive as you are. It breathes, takes in food, and gets rid of waste. It grows and reproduces, or creates one of its own kind.

Most cells reproduce by dividing, so that there are two cells where there once was one. Every living thing is made up of one or more cells, and each of these cells was produced by an already existing cell.