成人快手

  • DNA and the genome

    • Structure of DNA

      DNA is the molecule that holds the instructions for all living things. DNA achieves this feat of storing, coding and transferring biological information though its unique structure.

    • Replication of DNA

      DNA replication is the process by which a cell makes an identical copy of its DNA.

    • Gene expression

      Only a fraction of the genes possessed by any particular cell will be expressed. Gene expression is the process by which specific genes are activated to produce a required protein.

    • Cellular differentiation

      When cells express specific genes that characterise a certain type of cell we say that a cell has become differentiated.

    • Genome and mutations

      DNA replication is carefully controlled to preserve the genetic information. However, changes in the genome do sometimes occur. These changes are known as mutations.

    • Evolution

      Evolution is the process by which living things change over time, over many generations. These changes are as a result of changes to the genome (genomic variations).

    • Genomic sequencing

      Genomic sequencing is the process by which the sequence of nucleotide bases is determined for individual genes or even entire genomes.

  • Video playlist

Links