Results are out! Find what you need...fast. Get quick advice or join the chat
Hey! Sign in to get help with your study questionsNew here? Join for free to post

Comparisons of Artificial and Natural selections

Announcements Posted on
Applying to Uni? Let Universities come to you. Click here to get your perfect place 20-10-2014
    • Thread Starter
    • 16 followers
    Offline

    ReputationRep:
    (Original post by The Illuminati)


    In artificial selection, in terms of the product the best genotype would be homozygote as you can breed the homozygotes together so that ALL the offspring will be homozygous for the trait you want.

    crossing my fingers that is as clear typed out as it sounds in my head:crossedf:
    Because the organisms are more closely related, their genomes are very similar and they have similar allele combinations.
    So that makes them homozygous!!? their genes are similar? well it should be the same cause we are talking about the same species.
    sorry still couldn't see the link between inbreeding and homozygousy not your fault
    In outbreeding the organisms are not that closely related, so the allele frequency will be more varied so heterozygoussy occur more frequently than in inbreeding.
    so allele frequency of A is 90% and a 10% then I would have thought homozygousy would occur more

    In artificial selection, in terms of the product the best genotype would be homozygote as you can breed the homozygotes together so that ALL the offspring will be homozygous for the trait you want.
    I get it for artificial
    why nature doesnt want homozygous then?
    • 5 followers
    Offline

    ReputationRep:
    I'm gonna try again
    I think I should stress that the small gene pool created by inbreeding eliminates allele combinations completely. Because we are talking about artificial selection then the heerozygous geneotype will definately be removed due to the reasons stated previously.

    In natural mating is random. Random mating increases the genetic variety, an increase in genetic variety increases the frequecy of heterozygotes.
    • Thread Starter
    • 16 followers
    Offline

    ReputationRep:
    (Original post by The Illuminati)
    I'm gonna try again

    Aww v nice of you

    In natural mating is random. Random mating increases the genetic variety, an increase in genetic variety increases the frequecy of heterozygotes.
    I get it now!

    I think I should stress that the small gene pool created by inbreeding eliminates allele combinations completely. Because we are talking about artificial selection then the heerozygous geneotype will definately be removed due to the reasons stated previously.
    couldn't see the link between eliminating allele combination and homozygousy
    also couldn't figure out why inbreeding eliminates allele combination
    what do you mean by allele combination ??
    • 5 followers
    Offline

    ReputationRep:
    (Original post by arvin_infinity)
    Aww v nice of you



    I get it now!



    couldn't see the link between eliminating allele combination and homozygousy
    also couldn't figure out why inbreeding eliminates allele combination
    what do you mean by allele combination ??
    allele combination is my way of saying the genotype i just mean whether it's aa, AA, or Aa. Inbreeding can eliminate Aa completely.

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: April 15, 2012
New on TSR

Personal statement help

Use our clever tool to create a PS you're proud of.

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.