Question

Clamp connection are found in
(a)Ascomycetes
(b)Zygomycetes
(c)Saccharomycetes
(d)Basidiomycetes

Answer 1

Hint: The growth of hyphal cells in certain fungi creates a hook-like structure which is known as a clamp connection. It helps in creating genetic variation within the hypha and receives a set of different nuclei and ensures that the segments of the hyphae are separated by the septa.

Complete answer:
The clamp connection is found in Basidiomycetes. They are the large group of kingdom fungi that are filamentous and are composed of hyphae that reproduce asexually with the formation of specialized cells known as basidia that bear external meiospores that are usually four in number. They reproduce asexually by dividing with gross similarity to others and the formation of distinctive anatomical features such as cell wall components and analysis of DNA sequences. they are mutually indistinguishable and composed of mycelia which constitutes filamentous hyphae. They fuse via plasmogamy and migrate into each other's mycelia with the compatible nuclei and pair up with the resident nuclei. The process of meiosis takes place in the diploid basidium and forms four of the haploid nuclei which migrate into its basidiospore. The delayed karyogamy is due to the plasmogamy between the two compatible individuals and leads to the establishment of dikaryon which is long-lasting and gives rise to fruit bodies with basidia or directly basidia without fruit bodies.

Additional information:
Ascomycetes: These are the sac fungi which is the largest phylum of fungi and constitutes a microscopic sexual structure in which the non-motile spores are known as ascospores are formed. It is a monophyletic group which consists of a sexual species from other fungal taxa and are classified based on morphological and physiological similarities on bearing ascus. They are medicinal important for humans such as the antibiotics, for making bread, cheese, and alcoholic beverages.
Zygomycetes: It is a zygote fungus Vishal mostly terrestrial and lives in soil or decaying plant or animal matter which constitutes some species of parasitic plants, insects, and small animals that form symbiotic relationships with plants. They can form spores through sexual and asexual means before the germination and in a dormant state. The metabolic rate is very slow during the formation of sports and constitutes two types of dormancy which are exogenous dormancy and endogenous dormancy. When the dormancy is dependent upon the characteristics of the spores itself it is endogenous and if the dormancy is controlled by the environmental factors then it is an exogenous dormancy.
Saccharomycetes: They constitute the organisms of fungi and Ascomycota. It includes certain budding yeasts.

So, the correct answer is ' Basidiomycetes'.

Note: Ascomycota constitutes 30,000 species and is known as sac fungi which covers a range from the east used in baking two edible mushrooms. The true fungus constitutes one percent of Zygomycota. Basidiomycetes include various bracket mushrooms, stinkhorns, jelly, and shelf.