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

Self pollination & Cross pollination

  1. Oct 28, 2006 #1
    My book says self pollination maintains the parental characters or purity of the race indefinitely and is used to maintain pure lines for hybridization experiments.

    How can that be true. Coz, meiosis takes place in micro & mega spore mother cells. So there is crossing over which will lead to variation right?
     
  2. jcsd
  3. Oct 28, 2006 #2

    Moonbear

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Self-pollination reduces variation, but does not entirely eliminate it (due to crossing over and segregation of chromosomes during meiosis, as you have indicated), unless the parent is already homozygous for a trait. If one is only interested in studying limited traits, then it's possible to breed plants that are homozygous and then preserve those homozygous traits through continual inbreeding (self-pollination).
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Self pollination & Cross pollination
  1. 'Crossing Over' (Replies: 20)

Loading...