Question

Point out the odd one

• A. archesporium
• B. oogonium
• C. ovule
• D. antheridium

Answer 1

The correct option is A archesporium

• Archesporium is the cell or group of cells from which spore mother cell develops.
  
• Oogonium is the female sex organ of certain algae and fungi, typically a rounded cell or sac containing one or more oospores.
• The ovule is the structure that gives rise to and contains female reproductive cells. It consists of three parts - Integuments, nucellus and the female gametophyte.
• Antheridium is the male sex organ of algae, mosses, ferns, fungi and other non-flowering plants.
• Hence, oogonium, ovule and antheridium are involved in sexual reproduction. Archesporium are involved in asexual reproduction through spores.

So, the correct answer is 'Archesporium'.