structure of DNA

• how many strands are there of DNA?

  2
• what is DNA made up of?

  monomers
• what is in the nucleotide?


  phosphate, sugar and base

  
• what are the bases of nucleotides?

  A T C G
• how do nucleotides combine together to become a polymer?


  the phosphate of one nucleotide bonds to a sugar of another and continue to do so into one long chain called a sugar-phosphate backbone
• what are the complimentary bases? 


  A + T and C + G

  amie touray and gonzalez cow
• what is a genetic code?


  a sequence of bases
• what is a gene?


  a particular sequence of bases codes for a protien
• what codes for amino acids?

  triplet codes
• what are the main uses of protiens?

  -enzymes

  -hormones

  -structural protiens
• 1.the sequence of bases in DNA determines the sequence of amino acids in the chain

  2. the chain of amino acids then folds up to form a protein

  3. different sequences of amino acids leads to proteins with different shapes

  4.this allows different proteins to carry out different functions
• what are hormones?


  proteins that carry messages around the body