Learn about Gamete Cells in this educational video from dizzo95.
Read the full transcript »
Male Speaker: Gamete cells are produced to transmit genetic information from parents to the progeny. The cells are formed by a special process of cell division called myosis which results in the having of the chromosome number in each parental gamete so that the full compliment can be restored when sperm and ovum unite. First the chromosomes appear in the nucleus of the cell and then duplicate like chromosomes link together and exchange different sections of their length before separating and lining up across the center. They are pull to the opposite poles and eventually two cells are formed each one containing one member of each pair of chromosomes from the original cell. Then a second division begins and at the same way the chromosomes arrange themselves across the center of the nucleus. This time one half off each chromosome a chromatid moves to the poles of the nucleus. Within the four cells that are formed each chromatid were eventually replicate to form a chromosome and each gamete cell would contain half the original chromosome number.
Copyright © 2005 - 2014 Healthline Networks, Inc. All rights reserved for Healthline.