Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Quick Question

  1. Sep 17, 2008 #1
    Do mitochondria have like tiny nucleus? and if not how do they control their DNA replication and translation.....


    thnx
     
  2. jcsd
  3. Sep 18, 2008 #2

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    Mitochondria do indeed have their own genome, as well as their own machinery for making RNA and proteins from the genome. There are additional proteins that are synthesized from the nuclear genome and are imported into the mitochondria. As a result, it's the synchronization of mitochondrial and cellular replication that is the key point to understand (and it is not yet understood).

    Alberts et. al "Molecular biology of the cell" has extensive material on the subject in chapter 14. It's a fascinating topic that relates to the origins of aerobic life.
     
  4. Sep 18, 2008 #3
    However, mitochondria do not have a membrane-bound nuclei. Their transcription and translation resembles these processes in bacterial cells, which also have no nuclei.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Quick Question
  1. A quick bio question (Replies: 5)

Loading...