Question

Monoecious plants of Chara shows occurrence of

• A. Antheridiophore and archegoniophore on the same plant.
• B. Stamen and carpel on the same plant.
• C. Upper antheridium and lower oogonium on the same plant.
• D. Upper oogonium and lower antheridium on the same plant.

Answer 1

The correct option is D Upper oogonium and lower antheridium on the same plant.

• 


Monoecious plants are those species that bear both sperm and eggs on the same gametophyte.
• Chara is a genus of green algae in the family Characeae. They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures.
• They are found in freshwater, particularly in limestone areas throughout the northern temperate zone, where they grow submerged, attached to the muddy bottom.
• They prefer less oxygenated and hard water and are not found in waters where mosquito larvae are present.
• They are covered with calcium carbonate deposits. Chara is a genus of green algae in the family Characeae.
• They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures.
• They are found in freshwater, particularly in limestone areas throughout the northern temperate zone, where they grow submerged, attached to the muddy bottom.
• They prefer less oxygenated and hard water and are not found in waters where mosquito larvae are present. They are covered with calcium carbonate deposits.
  Hence, Option D is correct.