What are the modes of reproduction in algae?

(a) Most algae multiply by vegetative and asexual modes of reproduction.
(b) Asexual spores are of two types, mitospores or meiospores which are mostly motile or non-motile.
© Sexual reproduction involves fusion of gametes.
(d) It may be isogamous (fusion of similar gametes), anisogamous (fusion of dissimilar gametes) or oogamous (fusion of gametes different in size, shape and behaviour) type.