1. DNA, Genes and Adult cell cloning

2. DNA
DNA is the material inside the nucleus cells, carrying genetic information
DNA molecules carry the genetic code that determines a person’s characteristics e.g. hair colour
DNA is unique to every individual
Every living cell contains DNA

3. Chromosomes They are found in the nucleus
The human cell nucleus contains 23 pairs of chromosomes or 46 chromosomes
They are in pairs, as one is from the mother and one is from the father
Chromosomes carry genes.
Each one can carry several thousand genes

4. Genes A gene is a short section of the DNA chain
Different genes control the development of different characteristics in an organism
Genes can be inherited from parents
Many genes are needed to carry all the genetic information for a whole organism

5. Adult cell cloning method
1. Take a skin cell from the animal and remove the nucleus from the cell.
2. Take an egg cell from a donor.
3. Remove the nucleus from the egg cell.
4. Insert the skin cell nucleus into the empty egg cell.
5. Give the egg an electric shock, to make it divide. It will then form an embryo with the same genes as the original animal.
6. Put the embryo into a surrogate mother.
7. The embryo will develop into an clone of the original animal.