Question

Sexual reproduction in fungi occurs by all of the following except
A.oospores
B.ascospores
C.zoospores
D.basidiospores

Answer 1

Sexual reproduction in fungi occurs by various methods and processes. Fungi reproduce both by sexual and asexual methods. Sexual reproduction is a necessary requirement for genetic variability in the groups of fungi. Sexual reproduction involves oospores, ascospores, and basidiospores.

Complete answer:
Here is a brief idea regarding the sexual reproduction in fungi-

A.Oospores- The most primitive type of fungus produces the spores in the sporangia known as oospores. They are responsible for taking control over the sexual reproduction in fungi. Sexual reproduction takes place by the mating of two haploid hyphae which fuses to form a diploid spore and zygospore.

B. Ascospores- Ascospores are contained in the ascus of fungi. These spores are specifically produced in the fungi known as ascomycetes. They are sexually reproducing spores responsible for sexual reproduction in fungi. A single ascus contains eight ascospores. The meiotic division occurs to form these eight ascospores.

C.zoospores- Various fungi produce nonmotile, flagellate spores known as zoospores. They are naked, without a cell wall, and specialized for the only dispersal because they cannot divide and are not able to absorb nutrients. They can respond to various environmental factors which they used to locate the site for encyst.

D.basidiospores- Basidiospores are known as the reproductive spores produced by basidiomycete fungi. Examples of basidiomycetes are mushrooms, rusts, and smuts. They contain a haploid nucleus that is the result of meiosis.

So, the correct answer is “option C”.

Note:
Growths utilize an assortment of strategies to unite two viable haploid cores (plasmogamy). Some produce particular sex cells (gametes) that are delivered from separated sex organs called gametangia. In other growths, two gametangia come in contact, and cores pass from the male gametangium into the female, in this manner expecting the capacity of gametes. In still other parasites the gametangia themselves may combine so as to unite their cores.