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

What do these mean?

  1. Apr 11, 2005 #1
    What does "expressed sequence tag clones" mean

    and what does it mean with "sporadic"? For example when it says; "A few sporadic tumours".

  2. jcsd
  3. Apr 11, 2005 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    A sporadic tumor is non-heretitary, meaning that the it is not familial.

    An expressed sequence tags (ESTs) are derived from cDNA (which again comes from RNA expressed in the cell). In this case you isolate RNA from a tumor, synthesize cDNA from that and make an EST library. You can then compare the ESTs of different tumors.
  4. Apr 11, 2005 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Can you post some of the context of the statement about sporadic tumors? There is the non-hereditary context Monique mentioned, but it could also be used to indicate infrequent or appearing without any pattern.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: What do these mean?
  1. What does this mean? (Replies: 7)