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Biology 2

Description

A-Level Biology (Biology) Mind Map on Biology 2, created by Holly Bamford on 10/02/2016.
Holly Bamford
Mind Map by Holly Bamford, updated more than 1 year ago
Holly Bamford
Created by Holly Bamford about 9 years ago
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Resource summary

Biology 2
  1. Mutations
    1. Non-Sense
      1. prematurely stops translation
        1. A base changes
          1. Codes for a stop codon not an amino acid
            1. Causes the protein to become disfunctional
      2. Mis-Sense
        1. Change in base pair
          1. Can code for a different amino acid
            1. Causes the protein to become disfunctional
        2. Deletions
          1. Deletes a base
            1. All subsequent bases are shifted to right
              1. All codons change
                1. If the deletion is at the start it can cause huge changes
                  1. If at the end not as many changes
                    1. Causes protein to become disfunctional
          2. Chromosome disjunction
            1. Chromosomes fail to spearate during meiosis I or Meiosis II
          3. Protein Synthesis
            1. Transcription
              1. Copy out of nucleus
              2. Translation
                1. code from mRNA into a protein
                2. tRNA
                  1. transfer RNA
                  2. mRNA
                    1. messenger RNA
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