NEET Biology Principle Of Inheritance And Variation Question Bank Self Evaluation Test - Principles of Inheritance and Variation

  • question_answer
    Which of the following illustrates pleiotropy?

    A) In fruit flies, the genes for scarlet eyes and hairy body are located on the same chromosome.

    B) Matings between earless sheep and long eared sheep always result in short-eared offspring.

    C) Wheat kernels can range from white to red in color, a trait controlled by several genes.

    D) The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems.

    Correct Answer: D

    Solution :

    [d] Pleiotropic genes have multiple effects on the phenotype. E.g. Cystic fibrosis.


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