AQA A Level Biology复习笔记8.3.3 Non-Coding DNA & Regulatory Genes

Non-Coding DNA & Regulatory Genes


  • It can be highly difficult to translate the [popover id="IBYOAu-X6ZA6x3aV" lave="genome"] of complex organisms into their proteome
  • Determining the proteome of humans is difficult as large amounts of non-coding DNA are present in human genomes
    • It can be very hard to identify these sections of DNA from the coding DNA


  • The presence of regulatory genes and the process of alternative splicing in human genomes also affects gene expression and the synthesis of proteins
  • The proteome is larger than the genome due to:
    • Alternative splicing
    • Post-translational modification of proteins (often takes place in the Golgi apparatus)




Alternative splicing allows for a single gene to produce multiple proteins




The proteome is larger than the genome


Exam Tip

You are expected to know the definitions of genome and proteome for the exam.