DNA and Protein Synthesis

Print and bring to discussion.

Objectives

At the end of this lesson, you should be able to:

  1. reproduce the model of gene expression presented in class.

    Gene (DNA) --> mRNA --> Polypeptide --> Protein (Enzyme) --> Phenotype

  2. diagram the expression of a gene including transcription, translation, and the role of enzymes in the development of a phenotypic trait, i.e. chlorophyll production.

  3. explain the affect of mutations on protein functioning.
DNA Interactive

    * DNA Replication (Making sister chromatids during the S phase of the cell cycle)
          o Chose "Copying the Code" toward the bottom of the screen
          o then select "puting it together" from the top of the next screen.
          o Then choose the "Replication animation".
    * Transcription DNA --> RNA
          o Chose "Copying the Code" toward the bottom of the screen
          o then select "puting it together" from the top of the next screen.
          o Then choose the "Transcription animation"
    * Translation mRNA --> Protein
          o Chose "Reading the Code" toward the bottom of the screen
          o then select "puting it together" from the top of the next screen.
          o Then choose the "Translation animation".