[Guest]

Mmkay, so today in class we started Meiosis. We had already learnt what Mitosis was last week, and it made sense, but Meiosis to me just doesn't make sense...It looks exactly like Mitosis, but there's a whole bunch of textbook parts that mention "reproduction", and I'm not seeing how that connects if the cells are multiplying by splitting apart...Help?

<(^-^)>

[andromeda]

Well I know how to explain it in Serbian, but in English...

So I've rummaged through the net and thought of looking it up on YouTube too!

I've searched there for meiosis animation and this is what popped up!

This one lists some of the phases during meiosis!

I don't know how far you go in details in school, but these should be a good place to start in understanding the process.

I hope this helps a bit!

[Guest]

Thanks Andromeda, though the differences between Meiosis and Mitosis are a bit fuzzy...

<(^-^)>

[Izzy]

Basically the only difference is that mitosis 'daughter cells' are identical to the original 'parent cell', and in meiosis, the chromosomes, after being split, come back together in different arrangements, hence genetic diversity.

[Guest]

Seriously? It was that easy? Then howcome I need to make an entire comparison chart on it? o.O I thought it was way more complex...now how do I expand on that one statement...?

<(^-^)>

Edit: That's a rhetorical question, don't start lecturing me on doing my own work xD

Edited April 2, 2009 by Kathleen

[Guest]

http://highered.mcgraw-hill.com/olcweb/cgi...20and%20Mitosis

That there is a fairly good explanation, and I think it's doing it in terms that your class should be using.

[Guest]

Seriously? It was that easy? Then howcome I need to make an entire comparison chart on it? o.O I thought it was way more complex...now how do I expand on that one statement...?

<(^-^)>

Edit: That's a rhetorical question, don't start lecturing me on doing my own work xD

, I had to do the same thing.

[spoiler=just in case...I'd rather you work on it first ]

Mitosis____________________Meiosis

Genetically identical cells_____Non-identical cells

Occurs in body (somatic) cells_Occurs in special cells (gonads)

Produces 2 cells_____________Produces 4 cells

Used for growth_____________Used for reproduction

One cycle of division_________Two cycles of division

Diploid cells produced________Haploid cells produced

Edited April 2, 2009 by star_tiger

[Guest]

http://highered.mcgraw-hill.com/olcweb/cgi...20and%20Mitosis

That there is a fairly good explanation, and I think it's doing it in terms that your class should be using.

I appreciate the help, Someguy, but that made my computer crash...twice o.O

<(^-^)>

[Guest]

In a nutshell:

From what I remember:

Mitosis Meiosis

1. The daughter cells remain the 1. The daughter cells are different,

same as parent cells, the number number of chromosomes is n.

of chromosomes is 2n.

2. Single cycle of mitosis 2. 2 cycles - Meiosis I and Meiosis II

3. Generates 2 daughter cells. 3. Generates 4 daughter cells.

4. Purpose: For cell renewal and 4. To make gametes (sperm/ovum)

regeneration.

5. Occurs in somatic cells 5. Occurs in germ cells.

6. No crossover & synapse. 6. Has crossover & synapse for genetic

information exchange.

[Guest]

Thanks everyone ^-^

<(^-^)>