Meiosis is the process of cell division where sex cells are produced, also when chromosomes split and form sex cells in the end. The male sex cell is called sperm and the female sex cell is called an egg. This division occurs in all eukaryotes. There are three basic steps:1) the chromosome doubles
2) the 1st division
3) the 2nd division
Here’s an example of meiosis. A human body cell has 46 chromosomes. Female:
46
I
92
/ \
46 46
/ \ / \
23 23 23 23
I \ I /
1 egg & 3 polar bodies
or
\ I I /
4 sperm
Interesting facts that I learned were:
1) There are four stages in a nuclear division: prophase, metaphase, anaphase, and telophase.
2) Meiosis comes from the Greek work meioun, which means “to make smaller.”
3) Some eukaryotes lost the ability to carry out meiosis and got the ability to reproduce by parthenogensis.
2) Meiosis comes from the Greek work meioun, which means “to make smaller.”
3) Some eukaryotes lost the ability to carry out meiosis and got the ability to reproduce by parthenogensis.
In my opinion, I think that meiosis is an important part of life. Without the process of meiosis, any living organism wouldn't be able to reproduce. If our parents didn't reproduce, we all wouldn't be here today.
Here are the links to the articles I got my information from:
5 comments:
haha i have no idea..i think some disease though but i dont know
its k.......i dont really care cuz lots of people do that.....tennisgirl13 did too ♥love pooh more than eeyore =P lol ^_^
woo first comment
You sound very scientific!!!!
you didnt do the extra credit?
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