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The 13-celled male gametophyte of Selaginella has
- a)10 cells of the antheridium + 1 prothallial cells
- b)12 cells of the antheridium + 1 prothallial cells
- c)9 cells of the antheridium + 4 prothallial cells
- d)8 cells of the antheridium + 5 prothallial cells
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The 13-celled male gametophyte of Selaginella hasa)10 cells of the ant...
Microspores of Selaginella are haploid in nature. Each microspore divides by mitosis division and forms a small lens shaped prothallial cell and a large antheridial cell. Subsequesnt division only occur in antheridial cell which result of a 12 celled antheridium in which outer 8 cells form jacket of antheridium and inner 4 cells form primary androgonal cells. Thus mature microgametophyte contains 12 antheridial cells and 1 prothallial cell.
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The 13-celled male gametophyte of Selaginella hasa)10 cells of the ant...
The 13-celled male gametophyte of Selaginella has 12 cells of the antheridium and 1 prothallial cell.
Explanation:
Selaginella is a genus of vascular plants that belongs to the division Lycopodiophyta. It is a type of clubmoss and is commonly known as spikemoss. The male gametophyte of Selaginella is small and multicellular, consisting of 13 cells.
The male gametophyte of Selaginella develops within the antheridium, which is the male reproductive organ. The antheridium contains the sperm-producing cells called antherozoids. In Selaginella, the antheridium consists of 12 cells that give rise to antherozoids. These cells undergo several divisions to produce the antherozoids, which are released during fertilization.
In addition to the antheridium cells, the male gametophyte of Selaginella also contains one prothallial cell. The prothallial cell is a sterile cell that supports the development of the antheridium. It provides nourishment and protection to the antheridium cells.
The presence of 12 cells in the antheridium and 1 prothallial cell makes a total of 13 cells in the male gametophyte of Selaginella. This arrangement is characteristic of Selaginella and is different from other plants.
In summary, the 13-celled male gametophyte of Selaginella consists of 12 cells in the antheridium and 1 prothallial cell. The antheridium cells give rise to antherozoids, which are the sperm-producing cells, while the prothallial cell supports the development of the antheridium. This arrangement is unique to Selaginella and is important for its reproductive process.
Explanation:
Selaginella is a genus of vascular plants that belongs to the division Lycopodiophyta. It is a type of clubmoss and is commonly known as spikemoss. The male gametophyte of Selaginella is small and multicellular, consisting of 13 cells.
The male gametophyte of Selaginella develops within the antheridium, which is the male reproductive organ. The antheridium contains the sperm-producing cells called antherozoids. In Selaginella, the antheridium consists of 12 cells that give rise to antherozoids. These cells undergo several divisions to produce the antherozoids, which are released during fertilization.
In addition to the antheridium cells, the male gametophyte of Selaginella also contains one prothallial cell. The prothallial cell is a sterile cell that supports the development of the antheridium. It provides nourishment and protection to the antheridium cells.
The presence of 12 cells in the antheridium and 1 prothallial cell makes a total of 13 cells in the male gametophyte of Selaginella. This arrangement is characteristic of Selaginella and is different from other plants.
In summary, the 13-celled male gametophyte of Selaginella consists of 12 cells in the antheridium and 1 prothallial cell. The antheridium cells give rise to antherozoids, which are the sperm-producing cells, while the prothallial cell supports the development of the antheridium. This arrangement is unique to Selaginella and is important for its reproductive process.
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The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer?
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The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer?.
The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The 13-celled male gametophyte of Selaginella hasa)10 cells of the antheridium + 1 prothallial cellsb)12 cells of the antheridium + 1 prothallial cellsc)9 cells of the antheridium + 4 prothallial cellsd)8 cells of the antheridium + 5 prothallial cellsCorrect answer is option 'B'. Can you explain this answer?.
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