Question

Sexual reproduction in fungi is carried out by the fusion of compatible nuclei from two parents at a definite stage in the life cycle. Identify the different types of sexual reproduction occurring in fungi from the given figures and select the correct option.

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (C)

c

Answer 2

Planogametic copulation $(P)$ involves fusion of gametes. It may be isogamous or heterogamous (anisogamous and oogamous). In gametangial contact $(Q)$ male gametes or nuclei are transferred from antheridium to oogonium through a fertilisation tube. Gametangial copulation $(R)$ is a type of conjugation in which both the types of gametangia fuse directly resulting in the formation of a zygospore. Spermatisation $(S)$ involves the transfer of a small male gamete to the receptive region ortrichogyne of thefemale sex organ. In somatogamy $(T)$, sexual reproduction involves the fusion of two hyphae or mycelia.