Meiosis Notes
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Chromosomes contain genes that determine an organism's traits and are passed down from parents to offspring. Meiosis is a type of cell division that produces sex cells like eggs and sperm, which each have half the number of chromosomes as body cells, ensuring offspring do not have twice the normal number when the parents' chromosomes combine during fertilization. Meiosis results in four sex cells with half the chromosomes of the original parent cell to maintain the chromosome number between generations.
Meiosis Notes
- 1. Chromosomes Chromosomes are passed on - along with the genes on the chromosomes - from parents to offspring. If each parent contributed all chromosomes to an offspring, then the offspring would have twice as many chromosomes as the parents - twice the normal number of chromosomes. This does not happen because of a process called MEIOSIS. Chromosomes contain genes whose main function is to produce proteins. These proteins determine traits of an organism. Chromosome - determines traits (ie. hair color, shape of nose) Gene
- 2. Meiosis Meiosis is sexual reproduction. Your body is made up of trillions of cells. Most of those - including bone, muscle and skin cells - have 46 chromosomes in each nucleus. Sex cells have 23 chromosomes each nucleus. Meiosis is a type of cell division that produces sex cells (sperm or egg) with half as many chromosomes as body cells.
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- 11. Final product - 4 sex cells 4 eggs or 4 sperm Each has half the chromosomes as the parent cell.