1. Tardigrade
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  3. Biology
  4. Given is the representation of life cycle of members of classes Ascomycetes and Basidiomycetes. Select the correct option for processes A, B and C. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/biology/6b29d306319eae4135f74a15df51b514-.png /> A B C (a) Karyogamy Plasmogamy Meiosis (b) Plasmogamy Karyogamy Meiosis (c) Plasmogamy Meiosis Karyogamy (d) Karyogamy Meiosis Plasmogamy

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Q. Given is the representation of life cycle of members of classes Ascomycetes and Basidiomycetes. Select the correct option for processes A, B and C.
image
A B C
(a) Karyogamy Plasmogamy Meiosis
(b) Plasmogamy Karyogamy Meiosis
(c) Plasmogamy Meiosis Karyogamy
(d) Karyogamy Meiosis Plasmogamy

Biological Classification

Solution:

In Ascomycetes and Basidiomycetes, the life cycle is completed in three phases instead of two- haplophase, dikaryophase and diplophase (2n). Haplophase by plasmogamy converts into dikaryophase where each cell has two haploid nuclei. Then karyogamy occurs converting dikaryophase to diplophase. Meiosis occurs in diplophase and haploid condition is regained.