Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Biology (https://www.askmehelpdesk.com/forumdisplay.php?f=50)
-   -   Crossing over (https://www.askmehelpdesk.com/showthread.php?t=169392)

  • Jan 6, 2008, 10:17 AM
    faezeh
    Crossing over
    Hi,
    Is crossing over a kind of mutation?
  • Jan 6, 2008, 10:22 AM
    N0help4u
    I suppose it would depend WHERE you are going
  • Jan 6, 2008, 01:48 PM
    asking
    Read about chromosomal mutations here, then let us know what you think and why.

    Mutation - Wikipedia, the free encyclopedia
  • Jan 6, 2008, 10:05 PM
    faezeh
    Hi,
    I read the text.


    Mutation is a change in genetic material of a cell and it can be good or bad.Mutation cause difference in species and natural selection let the best individuals live to reproduce.
    The sequence of a gene can be altered in different ways and one of them is chrosomal translocation.Translocation occurs in nonhomologous chromosomes(I think crossing over is a kind of translocation wich occurs in homologous chromosomes!Because it is a change in genetic material,I think it can be a kind of mutation.)
  • Jan 7, 2008, 11:53 AM
    asking
    I'm pretty sure that crossing over is not considered a mutation. Crossing over is an exchange of material between homologues, rather than nonhomologous chromosomes. When homologues pair, near-identical sequences are brought into contact and exchange places.

    A translocation occurs between different chromosomes.

    I hope this helps. I thought this was a great question (and I'm not absolutely sure I answered it correctly). I never thought of this because these topics are usually treated separately in text books.

  • All times are GMT -7. The time now is 09:23 AM.