School sucked. Except for biology. Cause its FUN!!
Anyways, I’m having fun doing biology homework. We get to look at cells tomorrow. Isn’t that fun??
Soy muy sarcastico cuando hablar de la escuela. Translate that yourself, you lazy bum!
But really, biology is fun.
Today’s science lesson will pertain to cell division in eukaryotes. It is a general overview, and will be followed up with the steps of mitosis and meiosis in the next couple of posts.
Mitosis and meiosis are two different types of cell division. Mitosis happens in most of the cells in our body that divide. Basically, one cell divides into two daughter cells. Each pair of chromosomes is copied, and one copy of each pair (two chromosomes) is sent to each daughter cell. The two daughter cells are exactly the same genetically as the parent cell (except for a few mutations).
Meiosis is the type of cell division that produces sex cells (yes, sperm and eggs). Most cells have two copies of each chromosome, but cells that have been produced by meiosis only have one copy of each chromosome. This allows the zygote produced by the merging of the sperm and the egg to have a full set of chromosomes.
That will take a while to chew on.
Till next time,
Dr. Harry Bear
