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The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.
- a)Present, gametic contact, different, ascus.
- b)Absent, plasmogamy, different, basidium.
- c)Present, gametic copulation, different, basidium.
- d)Present, plasmogamy, different, ascus.
Correct answer is option 'B'. Can you explain this answer?
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The sex organs are______, but ___________is brought about by fusion of...
The sex organs are absent, but plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to basidium.
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The sex organs are______, but ___________is brought about by fusion of...
Understanding the Concept
The question relates to the reproductive mechanisms in fungi, particularly focusing on how sexual reproduction occurs in certain fungal species.
Key Points of the Answer
- Sex Organs:
In many fungi, sex organs are absent, which sets them apart from higher organisms that have distinct male and female reproductive structures.
- Plasmogamy:
This term refers to the fusion of two vegetative or somatic cells, which is a critical step in the sexual reproduction of fungi. During this process, the cytoplasm of two parent cells merges, but their nuclei remain distinct initially.
- Different Strains or Genotypes:
The fusion occurs between cells from different strains or genotypes, which is essential for increasing genetic diversity in the resulting offspring.
- Dikaryotic Structure:
After plasmogamy, the resulting cell possesses two nuclei (one from each parent) and is termed dikaryotic. This stage is a unique characteristic of fungal sexual reproduction.
- Formation of Basidium:
Eventually, the dikaryotic structure gives rise to a basidium, which is a specialized reproductive structure found in certain fungi, notably in the class Basidiomycetes. The basidium is where karyogamy (the fusion of nuclei) occurs, leading to the production of spores.
Conclusion
Thus, the correct answer is option 'B': "Absent, plasmogamy, different, basidium." This highlights the unique reproductive strategies that fungi employ, distinguishing them from more familiar reproductive processes seen in higher organisms.
The question relates to the reproductive mechanisms in fungi, particularly focusing on how sexual reproduction occurs in certain fungal species.
Key Points of the Answer
- Sex Organs:
In many fungi, sex organs are absent, which sets them apart from higher organisms that have distinct male and female reproductive structures.
- Plasmogamy:
This term refers to the fusion of two vegetative or somatic cells, which is a critical step in the sexual reproduction of fungi. During this process, the cytoplasm of two parent cells merges, but their nuclei remain distinct initially.
- Different Strains or Genotypes:
The fusion occurs between cells from different strains or genotypes, which is essential for increasing genetic diversity in the resulting offspring.
- Dikaryotic Structure:
After plasmogamy, the resulting cell possesses two nuclei (one from each parent) and is termed dikaryotic. This stage is a unique characteristic of fungal sexual reproduction.
- Formation of Basidium:
Eventually, the dikaryotic structure gives rise to a basidium, which is a specialized reproductive structure found in certain fungi, notably in the class Basidiomycetes. The basidium is where karyogamy (the fusion of nuclei) occurs, leading to the production of spores.
Conclusion
Thus, the correct answer is option 'B': "Absent, plasmogamy, different, basidium." This highlights the unique reproductive strategies that fungi employ, distinguishing them from more familiar reproductive processes seen in higher organisms.
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The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer?
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The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer?.
The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer?.
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The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of The sex organs are______, but ___________is brought about by fusion of two vegetative or somatic cells of _________strains or genotypes. The resultant structure is dikaryotic which ultimately gives rise to________.a)Present, gametic contact, different, ascus.b)Absent, plasmogamy, different, basidium.c)Present, gametic copulation, different, basidium.d)Present, plasmogamy, different, ascus.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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