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| Question | Answer |
| darwin fittest | the fittest produce more viable offspring |
| darwin- 3 types of natural selection | stabilising (birth weight), directional (pepper moths), disruptive (sexual selection) |
| examples of alleles that convey some advantage despite disease | sickle cell, thalassaemia, cystic fibrosis |
| red queen effect | competeing selective pressures continually force adaptations in both organisims- ie we are driving increased fitness of pathogens |
| evidence of evolution from bioinformatics | histone 4, HIV |
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