This title explains what happens when cells divide. Cell division is the way inwhich organisms grow. Even when an organism is fully grown some cells continueto ... » 

This title explains what happens when cells divide. Cell division is the way inwhich organisms grow. Even when an organism is fully grown some cells continueto divide to replace those that have become old or damaged. This book exploresthe complex relationship among chromosomes genes and DNA. It then examinesthe special form of cell division involved in reproduction and howcharacteristics are passed on from one generation to another so that a piggives birth to piglets and not kittens «