Today we learned about mitosis and meiosis. Mitosis is when the nucleus of the body cells divide creating two daughter cells exactly like their parent cell. The daughter cells, in humans, have 46 chromosomes. Meiosis is when the nucleus of sex cells divide. But, since they can only have 23 chromosomes, they must divide twice leaving each with 23 chromosomes. To read about this go to pages B58-64.
We also broke open one of the eggs in each class. We could see the membrane and the nucleus.
Please work on knowing the parts of your biomes and cell organelles. These will be on the test.
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