Deoxyribonucleic Acid

• DNA is the common genetic material of all living organisms
• The molecules of life

  DNA
• Carries the instructions for assembling a variety of protein which in turn is responsible for forming a variety of structures

  DNA
• Made of 2 linked strands resembling a twisted ladder – double helix


  DNA
• Each strands has backbone of alternating sugar (deoxyribose) and phosphate groups


  DNA
• Nucleotides are: Adenine, Cytosine, Guanine, and Thymine
• Every human body contain 23 pairs of chromosomes, for a total of 46 chromosomes
• Genes are packed in bundles of chromosomes
• Body cells contain about 35, 000 genes
• Single-stranded chromatid, will copy itself by producing its sister chromatid

  Replication
• Copying genetic codes into mRNA (messenger RNA)

  Transcription
• mRNA is used as codes to produce the desire protein in the code of DNA found in the nucleus of the cell

  Translation
• Each codons matches to specific amino acids to form specific protein