Which of the following statements is correct regarding...

Name: Problem 65, Chapter 2: Objective NCERT at your FINGERTIPS: Biology
Uploaded: 2021-11-07T03:54:06-08:00
Duration: 1 min 22 s
Channel: Aflah M
Description: Which of the following statements is correct regarding sexual reproduction in Basidiomycetes? (a) Plasmogarny occurs by the fusion of two somatic cells of different strains. (b) Karyogamy and meiosis occur in the basidium producing four basidiospores. (c) Basidiospores are exogenously produced on the basidium. (d) All of these.

Which of the following statements is correct regarding sexual reproduction in Basidiomycetes? (a) Plasmogarny occurs by the fusion of two somatic cells of different strains. (b) Karyogamy and meiosis occur in the basidium producing four basidiospores. (c) Basidiospores are exogenously produced on the basidium. (d) All of these.

Which of the following statements is correct regarding sexual reproduction in Basidiomycetes?
(a) Plasmogarny occurs by the fusion of two somatic cells of different strains.
(b) Karyogamy and meiosis occur in the basidium producing four basidiospores.
(c) Basidiospores are exogenously produced on the basidium.
(d) All of these.

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Key Concepts

Plasmogamy

Plasmogamy is the initial phase of sexual reproduction in fungi, involving the fusion of the cytoplasm from two compatible cells without the immediate fusion of their nuclei. This process leads to the formation of a dikaryotic cell, which is a hallmark of the sexual cycle in Basidiomycetes and sets the stage for subsequent nuclear fusion (karyogamy).

Karyogamy and Meiosis

Karyogamy is the process whereby the nuclei within the dikaryotic cell fuse, followed by meiosis, which is the reduction division that generates genetically diverse haploid cells. In Basidiomycetes, these events typically occur within specialized cells called basidia, leading to the formation of spores.

Basidiospore Formation

Basidiospore formation refers to the production of sexual spores on the external surface of the basidium. Following meiosis, the basidium typically produces a set number of spores, frequently four, that are capable of dispersal and germination into new fungal individuals.

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