Central Dogma of Molecular Biology

Key Questions

• How is gene expression related to the central dogma of molecular biology?

  Answer:

  The central dogma describes how a gene is ultimately expressed.

  Explanation:

  

  The central dogma shows how information is transferred from DNA to RNA to protein; when the cell receives a signal that a gene must be expressed, RNA Polymerase is recruited to the region of DNA where that gene is located. It makes an RNA copy of that region of DNA, in a process called transcription.

  This RNA is then transported out of the nucleus of the cell, and is "translated" into a protein by molecular machines called ribosomes. The process of going from DNA (gene) to RNA to protein is basically gene expression.
  
  

  Cory Grand · 3 · Oct 7 2015
• What is the central dogma of molecular biology?

  DNA -> DNA -> RNA -> protein

  DNA -> DNA
  (the process of DNA copying itself is called replication)

  DNA -> RNA
  (the process of DNA being used to create RNA is called transcription)

  RNA -> protein
  (the process of ribosomes using RNA molecule to make proteins is called translation)

  Here is a video which summarizes the central dogma of molecular biology using DNA Workshop from PBS.
  
  video from: Noel Pauller
  

  mrpauller.weebly.com · 1 · Apr 7 2015

• What is the central dogma of molecular biology?
• How is gene expression related to the central dogma of molecular biology?