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KVPY Sample Paper KVPY Stream-SX Model Paper-16

  • question_answer
    The leaf colour of certain plants is controlled by one gene. For that gene, the allele G = orange and g - green. You have a plant with orange leaves but do not know whether that plant's genotypes is GG or Gg. If you cross your unknown plant with one of the plants whose genotype is listed below, you will be able to determine your unknown's genotype. With which plant would you cross it?

    A) GG

    B) gg

    C) Gg

    D) Either of parents

    Correct Answer: B

    Solution :

    To know the genotype of dominant phenotype, we will cross that plant with the respective recessive phenotype. This is called test cross.


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