Q. Development of sporophyte from gametophytic tissue without fusion of gametes is :

Q. Development of sporophyte/embryo from gametophytic tissue without fusion of gametes is :

1. Apospory
2. Apogamy
3. Apomixis
4. Parthenogenesis

Solution :

Correct option : B The development of sporophyte/embryo from gametophytic tissue without fusion of gametes is called Apogamy. eg. fern. The development of an embryo sac directly from a cell of nucellus(2n) is called apospory. eg. Ranunculus Apomixis is an unusual sexual reproduction where there is no meiosis and syngamy. eg. Hawthorns A form of asexual reproduction in which an egg develops into an embryo without being fertilized is called parthenogenesis. eg honey bees Hence, option (B) is correct.