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With respect to the fungal sexual cycle,...

With respect to the fungal sexual cycle, choose the correct sequence of 1.events.Karyogamy, plasmogamy and meiosis. 2.Meiosis, plasmogamy and karyogamy. 3.Plasmogamy, karyogamy and meiosis. 4.Meiosis, karyogamy and plasmogamy.

A

Karyogamy, plasmogamy and meiosis

B

Meiosis, plasmogamy and karyogamy

C

Plasmogamy, karyogamy and meiosis

D

Meiosis, karyogamy and plasmogamy

Text Solution

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The correct Answer is:
To solve the question regarding the correct sequence of events in the fungal sexual cycle, we need to understand the definitions and order of the processes involved: 1. **Plasmogamy**: This is the first step in the sexual reproduction of fungi, where the cytoplasm of two parent cells fuses together. Importantly, this occurs without the fusion of their nuclei. This results in a cell with two distinct nuclei, a condition known as dikaryotic. 2. **Karyogamy**: Following plasmogamy, karyogamy occurs. This is the fusion of the nuclei from the two parent cells. This process results in the formation of a diploid cell, known as a zygote. 3. **Meiosis**: After karyogamy, the diploid zygote undergoes meiosis. This is a reduction division that results in the formation of haploid cells, which are the final products of the sexual cycle in fungi. Now, putting these steps together, the correct sequence of events in the fungal sexual cycle is: - **Plasmogamy** (fusion of cytoplasm) - **Karyogamy** (fusion of nuclei) - **Meiosis** (reduction division) Thus, the correct answer is option 3: **Plasmogamy, Karyogamy, and Meiosis**.

To solve the question regarding the correct sequence of events in the fungal sexual cycle, we need to understand the definitions and order of the processes involved: 1. **Plasmogamy**: This is the first step in the sexual reproduction of fungi, where the cytoplasm of two parent cells fuses together. Importantly, this occurs without the fusion of their nuclei. This results in a cell with two distinct nuclei, a condition known as dikaryotic. 2. **Karyogamy**: Following plasmogamy, karyogamy occurs. This is the fusion of the nuclei from the two parent cells. This process results in the formation of a diploid cell, known as a zygote. 3. **Meiosis**: After karyogamy, the diploid zygote undergoes meiosis. This is a reduction division that results in the formation of haploid cells, which are the final products of the sexual cycle in fungi. ...
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