Basidiomycetes: Advanced Fungi Quiz

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Questions and Answers

Which subclass of Basidiomycetes includes obligate parasites causing severe diseases in crops?

  • Tremellales
  • Ustilaginales
  • Uredinales (correct)
  • Exobasidiales

What is the primary phase of mycelium in Basidiomycetae?

  • Primary reproductive phase
  • Dikaryotic phase
  • Monokaryotic phase (correct)
  • Haploid phase

Where are Homobasidiomycetes commonly grown?

  • Hot deserts
  • Sea water
  • Polar ice caps
  • Grassland and wooden logs (correct)

What is the function of basidium (sporangium) in Basidiomycetes?

<p>Producing basidiospores through meiosis (A)</p> Signup and view all the answers

Which order of Heterobasidiomycetes includes fungi that cause the disease known as smut?

<p>Ustilaginales (D)</p> Signup and view all the answers

In which series of Homobasidiomycetes is the hymenium exposed?

<p>Agaricales (C)</p> Signup and view all the answers

What type of mycelium is formed by the germination of a basidiospore in Basidiomycetes?

<p>Primary mycelium with a single haploid nucleus (D)</p> Signup and view all the answers

What is the role of sexual reproduction in Basidiomycetes?

<p>Fusion of protoplasts and delayed karyogamy (D)</p> Signup and view all the answers

Which phase of mycelium is short-lived and does not involve sex organs or basidia?

<p>Primary mycelium with a single haploid nucleus (C)</p> Signup and view all the answers

What differentiates the secondary mycelium from the primary mycelium in Basidiomycetes?

<p>Longevity and absence of motile structures or cells (A)</p> Signup and view all the answers

What does sexual reproduction actually cause in Basidiomycetes?

<p>Plasmogamy or fusion of protoplasts without fusion of nuclei (A)</p> Signup and view all the answers

What is the main food absorbing phase in Basidiomycetes?

<p>Septate hyphae with central pore and outgrowths (D)</p> Signup and view all the answers

What is the common feature of clamp connections in Basidiomycetes?

<p>They are universally present on the dikaryotic hyphae (D)</p> Signup and view all the answers

What does a basidium commonly produce in Basidiomycetes?

<p>Meiospores or basidiospores (D)</p> Signup and view all the answers

In which subclass of Basidiomycetes does the primary mycelium germinate to produce fructifications every year?

<p>Homobasidiomycetidae (A)</p> Signup and view all the answers

What occurs in club-shaped structures known as basidia in Basidiomycetes?

<p>Karyogamy and meiosis (A)</p> Signup and view all the answers

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