Sunday, January 31, 2010

ummmmmmmm new format is confusing..... science homework!!!!!







<-------MITOSIS



















<------MEIOSIS


i get everything except meiosis.

this week we continued learning about meiosis. Meiosis is when sex cells multiply. meiosis makes Haploid cells. Mitosis is like a regular cell like an eye cell or skin cell, and with mitosis you make a Diploid cell. Miosis is another story in meiosis you are making sex cells and haploid cells.


Diploid cells are cells which contain 2 sets of chromosomes, which will later be divided into two sets of 23 chromosomes for each daughter cell. The total will come up to be 46 chromosomes. The other type of cell is a haploid. A haploid is a sex cell which contains 23 chromosomes. Later when the sperm enters the egg, or the egg meets the sperm the two sets of DNA (One from the sperm, and the other from the egg) will pair up to make another cell with 46 chromosomes. Different animals have different amounts of chromosomes.


How are dipoid cells different from haploid????

Diploid cells are different from haploid cells. Diploid is having two sets of homologous chromosomes. Haploid is having one set of daughter cells. (4 daughter cells)

Haploid cells have one set of daughter cells which means they have 23 chromosomes where as Diploid cells have two set of daughter cells meaning they have 23 pairs of chromosomes (46 chromosomes).


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