Ok Genetic question!! Please help!!

Discussion in 'General breed discussions & FAQ' started by Tripp16, Jun 4, 2012.

  1. Tripp16

    Tripp16 Songster

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    Ok so Im writing a research paper on Gregor Mendel and his contribution to genetics. I am bringing in chicken breeding but I would like to know these questions to help finish up my paper.


    What is the roosters contribution to the offspring

    What is the hens?

    I know there are dominate and recessive colors such as a barred roo will make all barred babies vice versa.

    Can someone explain the whole shabang to me? [​IMG]

    Thank you soo much!
     
  2. catwalk

    catwalk Songster

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    Go here and play for a while. http://kippenjungle.nl/kruising.html
    I assume that you know the basics, but this will help you understand particular genes. There are some that are incompletely dominant, like silver and blue, some that are sex-linked, like chocolate and barred, and some that are pretty straightforeward. I don't know of any that are codominant. For example, you can't breed a black bird and a white bird and get a black and white bird, unless each parent is heterozygous for mottling. Look around there for a while, and if you have specific questions, try using the search function on here. Good luck.
     
  3. Sonoran Silkies

    Sonoran Silkies Flock Mistress

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    Actually that is not quite accurate. A barred father may or may not give barring to all his offspring; it depends on whether he has one or two copies of the gene. If two copies, the statement is accurate, but if only one, only about half his offspring will receive the gene, and there will be no gender discrimination involved. On the other hand, a barred hen will give barring to ALL her sons and to NONE of her daughters.

    The hen determines the gender of the offspring, unlike in mammals where the father makes that determination.

    For most genes both parents contribute equally. Only the sex-linked genes give a bias from one parent or the other. In the case of sex-linked genes, the mother only gives to the sons, and the daughter can only inherit them from the father. However, the father can also pass sex-linked genes to their sons.
     
  4. Henk69

    Henk69 Songster

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    You may want to read this page also:
    http://kippenjungle.nl/basisEN.htm

    It is a bit too condensed information, but it holds many clues to get an overview of chickengenetics.
     
  5. hot93chick

    hot93chick In the Brooder

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    I use this awesome website: http://kippenjungle.nl/kruising.html
    I don't know anything about genetics but if you just click on "show examples" and pick what your rooster/hen looks like & calculate that way, you can get some great colors/breeds!
     
  6. Tripp16

    Tripp16 Songster

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    Thanks everyone for the awesome and helpful websites! I will finish my paper tomorrow and then summer here I come!!! [​IMG]
     

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