Q9 / 180 · NEET 2020 (Phase 2) · Botany

Correct position of floral parts over thalamus in mustard plant is:

  • Correct answer
    A
    Gynoecium occupies the highest position, while the other parts are situated below it
  • B
    Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise below the ovary
  • C
    Gynoecium is present in the centre and other parts cover it partially
  • D
    Gynoecium is situated in the centre, and other parts of the flower are located at the rim of the thalamus, at the same level

Solution

Hypogyny: In a hypogynous flower, ovary occupies the topmost position on the thalamus, while the stamens, petals and sepals are separately and successively present below the ovary. The ovary in a hypogynous flower is said to be superior. E.g, Brinjal, China rose, mustard, etc.

Hence, the correct answer is option: 'A'.

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