Monoecious plant of chara shows the occurrence of [AIPMT 2013]

Monoecious plant of chara shows the occurrence of

Monoecious plant of chara shows the occurrence of [AIPMT 2013]

Option 1 : Antheridiophore and archegoniophore on the same plant.
Option 2 : Stamen and carpel on the same plant.
Option 3 : Upper antheridium and lower oogonium on the same plant.
Option 4 : Upper oogonium and lower antheridium on the same plant.

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