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Biology · PYQ NEET UG 2019(2)

हिन्दी

What type of pollination takes place in Vallisneria?

  1. Male flowers are carried by water currents to female flowers at surface of water.
  2. Pollination occurs in submerged condition by water.
  3. Flowers emerge above surface of water and pollination occurs by insects.
  4. Flowers emerge above water surface and pollen is carried by wind.

Correct answer · Option 1

Male flowers are carried by water currents to female flowers at surface of water.

Explanation

In Vallisneria, female flowers reach the surface by long stalks, and male flowers/pollen grains are released onto the water surface to reach them.
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