AQA Biology A2 Unit 5 Quiz

A quiz testing most (maybe more to come) areas of the unit 5 specification.

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  • Created by: Josh
  • Created on: 03-05-13 18:07

1. A point mutation occurs. It may be either silent, nonsense or mis-sense. How many of the three will affect the primary structure of the resulting polypeptide?

  • 0
  • 2
  • 1
  • 3
1 of 20

Other questions in this quiz

2. A complete gene, comprised of 37.5% introns, in a particular DNA section undergoes transcription, splicing then translation. The original DNA section was 1.728kBp long. What is the number of amino acids in the resulting polypeptide?

  • 577
  • 360
  • 361
  • 359
  • 576
  • 575

3. What does it mean to suffer from 'Type I' diabetes mellitus?

  • Type I diabetics do not produce sufficient insulin, suspected to be due to an autoimmune response to pancreatic cells and must inject insulin to maintain their BGC.
  • Type I diabetics have cells which are unresponsive to insulin (often due to obesity), and so must manage their carbohydrate intake to maintain their BGC

4. Normal blood glucose concentration (BGC) is:

  • 10mg per 100cm^3 blood
  • 90mg per 100cm^3 blood
  • 100mg per 100cm^3 blood
  • 9mg per 100cm^3 blood

5. If a [1] mutates it may become a [2] which stimulates [3], leading to uncontrolled cell division, or a [4]

  • 1: proto-oncogene, 2: oncogene, 3: cell division, 4: tumour
  • 1: tumor suppressor gene, 2: oncogene, 3: cell division, 4: tumour
  • 1: oncogene, 2: excitatory oncogene, 3: autolysis, 4: tumour

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