dna

• the genome of an organism is

  its entire genetic material
• each gene codes for

  a particular sequence of amino acids to make a specific protein
• important uses of the study of the human genome

  doctors can search for genes linked to different types of disorders

  it can help scientists to understand the cause of inherited disorders and how to treat them

  scientists can investigate how humans have changed overtime
• DNA is a 


  polymer made up of repeating nucleotides
• each nucleotide consists of

  a sugar

  a phosphate

  one of four bases A,C,G or T