Which one of the following is wrong about chara?
Uper oogonium and lower round antheridium
Globule and nucule present on the same plant
Upper antheridium and lower oogonium
Globule is male reproductive structure
Chara is a choloropycea. Oogamous is the method of sexual reproduction in it. Antheridium is the male sex organ and oogonium is the female sex organ in chara. Antheridium is present on the lower part while oogonium is present on the upper part. Hence option (3) is correct.