Question

How many meiosis occur in the sporangium of Nephrolepis?

• A. $1$
• B. $4$
• C. $16$
• D. Uncertain and variable

Answer 1

The correct option is A $1$

Nephrolepis is the genus of fern which completes its life cycle in two phases, sporophytic phase and gametophytic phase. During sporophytic phase adult plant produces diploid spore mother cells in the sporangium. The spore mother cells undergo meiosis and produce haploid spores in gametophytic phase. These spores then develop into the gametes. In this life cycle, only one-time meiosis occurs but mitosis occurs 4 times. Thus, the correct answer is option A.