Which of the following plants is monoecious?
Answer: (D) Chara. Answer: (D) Chara.
- A.Marchantia polymorpha
- B.Cycas circinalis
- C.Carica papaya
- D.Chara✓
Correct Answer
(D) Chara
Solution & Explanation
Answer: (D) Chara. Solution: Monoecious plants bear both male and female sex organs on the same individual, whereas dioecious plants bear them on separate individuals. Among the options, Chara (a green alga) is monoecious, while Marchantia polymorpha (a liverwort) and Cycas circinalis (a gymnosperm) are dioecious, and Carica papaya is also dioecious. Chara is in scope as a green alga listed in NCERT Plant Kingdom. NCERT Reference: Class XI Biology, Plant Kingdom, p.26, line 35 — "Some commonly found green algae are: Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara". (The monoecious/dioecious sex-condition of these specific taxa is not stated verbatim in the current reprint; the citation grounds Chara's group membership.)