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.
Updated On: Jul 7, 2022
a
b
c
d
Hide Solution
Verified By Collegedunia
The Correct Option isC
Solution and Explanation
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.
Fungi (singular: fungus or funguses) are eukaryotic organisms classified under the kingdom Fungi. These organisms can be single-celled or multicellular. They include organisms, particularly yeasts, mushrooms, and molds. The eukaryotic microorganisms possess a cell wall made of chitin and polysaccharides. With that, they can be found anywhere and are classified as heterotrophs.
The nucleus they keep is surrounded by a nucleus membrane and is dense, clear, and also contains chromatin threads. The existence of fungi can be seen as black spots found on bread, mushrooms, and yeast cells. These microorganisms are also responsible for fungal and skin diseases.
Based on the mode of nutrition, fungi can be classified as Saprophytic, Parasitic, and Symbiotic.
Based on spore formation, fungi can be classified as Zygomycetes, Ascomycetes, Basidiomycetes, and Deuteromycetes.
