Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Incomplete dominance is found in

    A) Pisum sativum                  

    B)  Antirrhinum majus

    C)  Both [a] and [b]              

    D)  None of the above

    Correct Answer: B

    Solution :

    Incomplete   dominance   or   blending inheritance-After Mendel, several cases were recorded where \[{{F}_{1}}\] hybrids were not related to either of the parents but exhibited a blending of characters of two parents. This is called is ncomplete dominance. Incomplete dominant is found in Antirrhinum majus (snapdragon or dog flower). In this, when plant with red flowers (RR) is crossed with plant having white flowers (rr), the \[{{F}_{1}}\]plants (Rr) bear pink flowers. When these \[{{F}_{1}}\]plants with pink flowers are self pollinated that develop red (RR), pink (Rr) and white (rr) flowered plants in the ratio of 1:2:1 (\[{{F}_{2}}\] generation).


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