Evolution

Description

GCSE Biology (Term 1) Mind Map on Evolution, created by ashleighcattell on 26/09/2013.
ashleighcattell
Mind Map by ashleighcattell, updated more than 1 year ago
ashleighcattell
Created by ashleighcattell about 12 years ago
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Resource summary

Evolution
  1. Where it all begins
    1. overproduction of young
      1. variation within species
        1. competition between organisms
          1. survival of the fittest
            1. inheritance of beneficial genes
              1. gradual change of species
    2. Speciation = when members of a species evolve differently due to seperation and enter a new species
      1. DNA
        1. nucleus
          1. 46 chromosones (23m+23f)
            1. gene
              1. DNA
                1. genes are protien instructions
                  1. an allele is a variation of gene
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