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🔬 Biology  ·  Biological Classification  ·  NEET

In the fungal sexual cycle, the correct sequence of events is

Answer: Plasmogamy, karyogamy, meiosis.

  • A Karyogamy, meiosis, plasmogamy
  • B Plasmogamy, karyogamy, meiosis
  • C Meiosis, plasmogamy, karyogamy
  • D Plasmogamy, meiosis, karyogamy

Correct answer: B. Plasmogamy, karyogamy, meiosis

Explanation: The fungal sexual cycle proceeds as: plasmogamy (fusion of protoplasms of two motile/non-motile gametes), followed by karyogamy (fusion of two nuclei), and then meiosis in the zygote (diploid structure).

Whittaker's Five KingdomsMoneraprokaryotesProtistaunicell. eukaryotesFungichitin wallPlantaecellulose wallAnimaliano wallNOT in any kingdom: Viruses (non-cellular), Viroids (RNA, no coat), Lichens (alga+fungus symbiosis)Classification criteria: cell structure, nutrition mode, body organisation, reproduction, phylogeny

Whittaker's five-kingdom system (1969) groups all cellular life by cell structure and nutrition; viruses, viroids, and lichens fall outside this system entirely since they aren't independently classifiable as one of the five.

Concept context

Whittaker's five kingdom system covering Monera, Protista, Fungi, plus viruses, viroids, and lichens. A foundational NEET chapter on how living organisms are grouped.

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