Question

Apogamy is:

• A. reproduction of virus
• B. failure of fusion of gametes
• C. development of bacteria
• D. loss of function of reproduction

Answer 1

Answer: (B)

failure of fusion of gametes

Answer 2

Apogamy was first reported by Farlow $(1874)$. It can be defined as the development of a sporophyte directly from the gametophyte without the intervention of sex organs and gametes. The sporophyte formed usually have the same chromosome number as the gametophyte (i.e. the haploid number for the species). It is common and wide spread phenomenon in ferns. e.g., Dryopteris, Pteris, Pellaea, Adiantum etc.