exam remember

• Antibiotic resistant bacteria


  Bacteria reproduces very quickly

  mutations occur during reproduction

  If a mutated bacterium is resistant to antibiotics, it will survive exposure to antibiotics and go on to reproduce.
• explain how a change in dna sequence can result in the production of a different protein

  It changes the squence in MRNA produced in transcription lead to a different amino acid being produced and changes the function of the protien
• temperature on enzymes


  the temperature is above / below optimum +

  the enzyme denautres so the active site chnages change to no enzyme substrate complex
• Describe how the of x(better charectristic)can be produced

  variation exists within a species . breed the xs with with the desired charerstics and repeat with the other generations