What is DNA and why do we need
DNA is like a large instruction book, approximately
800 Bibles long, written in the strange language
"genish", which consists of only four letters
(A,C,T,G). This book of life contains everything
needed to know about building and maintaining a
living organism and it directs all the events
performed by a cell.
In our cells the DNA is located
in the nucleus and packed into 46 chromosomes, 23
from the mother and 23 from the father which combine
to form a unique individual. How is this book of
life, the DNA, inherited from one cell to its
daughter cells and from one generation to another?
The answer is replication.
The information in the DNA is divided into different
regions called genes. The genes are the recipies for
proteins, the building blocks and workers in our