Question

Development of embryo from a cell of embryo sac other than egg is an example of

• A. Apospory
• B. Apogamy
• C. Adventive embryogeny
• D. Parthenogenesis

Answer 1

Answer: (C)

Adventive embryogeny

• Apospory is the development of gametophyte from the cells of sporophyte without the formation of spores.

• Apogamy is the development of sporophyte from a cell of embryo sac gametophyte other than oosphere without the fusion of gametes.

• In adventive embryogeny, there is a formation of extra embryos due to sporophytic budding. One or more sporophytic cells, either nucellus or integuments undergo stages of embryogeny and eventually develop into mature embryos.

• Parthenogenesis is the formation of an embryo from unfertilized egg or female gamete.

Hence, development of an embryo from a cell of embryo sac other than the egg is an example of Adventive embryogeny.

So, the correct answer is C.