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. How many copies of mRNA is contained in the HIV virus

  • Two
  • None
  • One
  • Three
1 of 20

Other questions in this quiz

2. Allopatric speciation relies on

  • Species not responding to others coutships
  • Physical barriers (e.g. mountains)
  • Physical incompatibility

3. Introns are

  • The non coding regions of DNA
  • The coding regions of DNA
  • Molecule involved in Protein synthesis

4. What is the definition of a species

  • Organisms that can reproduce and produce infertile offspring
  • Organisms that can reproduce and produce fertile offspring
  • Two different species that can reproduce and produce fertile offspring

5. Which of these is not a biotic factor?

  • Temperature
  • Competition
  • Predation




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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