Meiosis notes - Madison County Schools

Meiosis- a type of cell division that produces four cells- each with half the number of chromosomes as the
parent cell.
In animals meiosis occurs in the sex organs- testes in males and ovaries of the female
A gamete, or sex cell, is a haploid cell. Meaning the cell contains only one of each kind of chromosomes verses
a diploid cell found in body cells, which have two of each kind of chromosome.
Mitosis results in the production of two genetically identical diploid cells. Meiosis produce four
genetically different haploid cells in two stages known as the 1st and 2nd meiotic divisions.
Humans have 46 chromosomes- 23 pair. The sperm has 23 individuals and the egg has 23 individualsthey pair up and form 23 pair= 46 chromosomes and a unique individual-YOU