A2 Biology Unit 4 ( EDEXCEL ) 39 Questions

I have created a quiz on Unit 4 of Edexcel Biology (A2). Please excuse any spelling mistakes, I've done my best to spell everything write, but feel free to message me if you spot one. I have checked and checked the questions and answer but there are a lot there so if you do find one that you think is incorrect please let me know immediatly so I can change it. I hope it helps, even if its just a little bit. 

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  • Created by: Holly
  • Created on: 06-12-12 12:21

1. What does the phrase 'non-overlapping' refer to?

  • The triplet codons do not overlap
  • The specific and non specific immune response do not overlap
  • The amino acids have more than one codon
1 of 20

Other questions in this quiz

2. Genotype is the outward appearence of a gene

  • False
  • True

3. Which of these is not a biotic factor?

  • Predation
  • Temperature
  • Competition

4. Antibodies crossing the placenta from the mother to the baby is called

  • Artificial Natural immunity
  • Passive Natural immunity
  • Artificial Active immunity
  • Passive Artificial immunity

5. GPP ( Gross Primary Productivity ) =

  • NPP / R
  • NPP - R
  • NPP + R
  • NPP x R




Will not load results, other quiz's do but not this one. Good questions, though



I was waiting for my results for around 3 minutes then I decided to leave it then just saw that comment. Thanks



yea same ^ annoying



doesnt load marks!!!

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