chromosomes

• The nucleus contains genetic information in the form of chromosomes
• Chromosomes are very small x-shaped structures made up of DNA
• DNA- complex chemical molecule carrying the different codes needed for different proteins to be made
• Gene- a small section of DNA that determine our physical characteristics
• Allele- form that a gene takes
• Chromosomes ensure DNA is actively copied during cell division
• What does DNA stand for?

  Deoxyribonucleic acid
• There are 46 chromosomes in the human body (23 pairs)