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    1.wat will be the genotypes of the parents and offspring ??
    when
    (a) Two normal parents have five children, four normal and one albino??

    I only know punnett squares for 4 offspring
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    If you know the genotypes of the offspring then you should be able to work your way back to the parents genotypes/ possible genotypes.

    Perhaps try it yourself and somebody will help you where you go wrong.
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    (Original post by shorty.loves.angels)
    If you know the genotypes of the offspring then you should be able to work your way back to the parents genotypes/ possible genotypes.

    Perhaps try it yourself and somebody will help you where you go wrong.
    Well you already know the genotypes of the parents as albinism is recessive, and the parents are normal, therefore they are both heterozygous for the 'albinism' gene.

    It's impossible (on a purely theoretical level) to tell the genotypes of each of the normal children from that question... whereas the albino child is homozygous recessive for the albinism gene.
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    (Original post by Murphology)
    Well you already know the genotypes of the parents as albinism is recessive, and the parents are normal, therefore they are both heterozygous for the 'albinism' gene.

    It's impossible (on a purely theoretical level) to tell the genotypes of each of the normal children from that question... whereas the albino child is homozygous recessive for the albinism gene.
    This is the approach I was suggesting the OP took, just in my own way of thinking - Obviously if an off spring is albino then this would lead to both parents being carriers (heterozygous, unless they themselves were affected).

    Then the other offspring could either be heterozygous/ carriers or homozygous unaffected. I believe it is acceptable to note both possibilities?
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    (Original post by shorty.loves.angels)
    This is the approach I was suggesting the OP took, just in my own way of thinking - Obviously if an off spring is albino then this would lead to both parents being carriers (heterozygous, unless they themselves were affected).

    Then the other offspring could either be heterozygous/ carriers or homozygous unaffected. I believe it is acceptable to note both possibilities?
    Yup, I knew you knew lol. The OP is just being daft and not detailing the question fully, or has been asked a daft question.
 
 
 
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