Page 2 - 2.Lesson Notes-Asexual mode of reproduction-I

1.Asexual Reproduction in Organisms

 In asexual reproduction, the plant can give rise to a new plant without the
involvement of seeds.
 Only single parent is involved. So, Offspring produced is identical to the
parent.
 It has the same inherited characters as the parent plant.

 Spore formation, Fragmentation, budding and vegetative propagation are
some of the different methods of asexual reproduction.

(i) Spore Formation

 The term is also used to refer to the process of reproduction via spores.

 Spores are the tiny, spherical unicellular asexual reproductive units and
are microscopic protected by a tough coat to withstand the unfavourable
conditions.
 For example, Ferns and mosses plants, especially in hilly areas, have
spore-producing structures on leaves called sori.
 In mosses, spores are produced in structures called capsule while in
ferns, they are produced in sori present on leaves called sporophylls.
 When the conditions are favourable, the sori burst and spores are
released into the surrounding area and germinate into new individuals.