NATS 1675 Lecture Notes - Meiosis, Karyotype, Chromosome
Document Summary
January 29th, 2014: there are two types of cell division; mitosis & meiosis. Mitosis a kind of cell division in which two identical cells are produced. When you reach your adult height, this division is not longer needed for growth but it still good for repair & replacement. Meiosis a process of cell division by which gametes containing half the normal number of chromosomes are produced. Meiosis is also called reduction division: this division is going on through your reproductive organs, we have 23 pairs or 46 chromosomes. You want your off spring to have the same number of chromosomes. Gametes sex cells, e. g. , egg cells, sperm cells, pollen grains. A uni-sex term for a cell that have undergone meiosis. Chromosome a strand of dna and protein found in the nucleus of a cell; carries genetic information. In humans there are 46 chromosomes or 23 pairs: when the chromosomes are spread out and thin they are chromatin.
