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 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
  • 575
  • 360
  • 359
  • 576
  • 361
1 of 20

Other questions in this quiz

2. 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

3. Heart rate is controlled by what region of the brain?

  • Medulla oblongata
  • Frontal lobe
  • Hippocampus

4. Progesterone...

  • ...is secreted from the pituitary gland and inhibits LH and FSH secretion up until a critical threshold, upon which they are in fact stimulated.
  • ...is secreted from the corpus luteum and maintains the uteral lining (if a fertilised egg has attached).
  • ...is secreted from the pituitary gland and maintains the uteral lining (if a fertilised egg has attached).
  • ...is secreted from maturing follicles and inhibits LH and FSH secretion up until a critical threshold, upon which they are in fact stimulated.

5. During transcription, [1] 'unzips' the DNA strand and [2] moves in to create complementary [3]. The DNA strand has only ~[4] bases separated during this process.

  • 1: DNA helicase, 2: RNA polymerase, 3: pre-mRNA, 4: 150
  • 1: DNA helicase, 2: RNA polymerase, 3: pre-mRNA, 4: 10
  • 1: RNA polymerase, 2: DNA helicase, 3: mRNA, 4: 20

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