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Part of spindle left after chromosomes have moved to poles is
- a)Centrosome
- b)Centriole
- c)Chromocentre
- d)Phragmoplast
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Part of spindle left after chromosomes have moved to poles isa)Centros...
Explanation:
During cell division, the spindle fibers are formed by the centrosomes. The spindle fibers attach to the chromosomes and pull them apart to opposite poles of the cell during anaphase. Once the chromosomes have moved to the poles, the spindle fibers break down and the cell begins to divide. However, a small part of the spindle remains in the cell. This part is called the phragmoplast.
Phragmoplast:
Phragmoplast is a microtubule structure that forms between the chromosomes during cell division in plants. It is responsible for the formation of the cell plate, which will eventually divide the cell into two daughter cells. The phragmoplast is made up of overlapping microtubules that are arranged in a circular pattern near the cell membrane. As the phragmoplast grows, it deposits vesicles containing cell wall material along the center of the structure. These vesicles eventually fuse together to form the new cell wall.
Conclusion:
In conclusion, after chromosomes have moved to poles, the spindle fibers break down and a small part of the spindle remains in the cell, known as phragmoplast. The phragmoplast is responsible for the formation of the cell plate, which eventually divides the cell into two daughter cells.
During cell division, the spindle fibers are formed by the centrosomes. The spindle fibers attach to the chromosomes and pull them apart to opposite poles of the cell during anaphase. Once the chromosomes have moved to the poles, the spindle fibers break down and the cell begins to divide. However, a small part of the spindle remains in the cell. This part is called the phragmoplast.
Phragmoplast:
Phragmoplast is a microtubule structure that forms between the chromosomes during cell division in plants. It is responsible for the formation of the cell plate, which will eventually divide the cell into two daughter cells. The phragmoplast is made up of overlapping microtubules that are arranged in a circular pattern near the cell membrane. As the phragmoplast grows, it deposits vesicles containing cell wall material along the center of the structure. These vesicles eventually fuse together to form the new cell wall.
Conclusion:
In conclusion, after chromosomes have moved to poles, the spindle fibers break down and a small part of the spindle remains in the cell, known as phragmoplast. The phragmoplast is responsible for the formation of the cell plate, which eventually divides the cell into two daughter cells.
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Part of spindle left after chromosomes have moved to poles isa)Centros...
In a properly formed mitotic spindle, bi-oriented chromosomes are aligned along the equator of the cell with spindle microtubules oriented roughly perpendicular to the chromosomes, their plus-ends embedded in kinetochores and their minus-ends anchored at the cell pole
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Part of spindle left after chromosomes have moved to poles isa)Centrosomeb)Centriolec)Chromocentred)PhragmoplastCorrect answer is option 'D'. Can you explain this answer?
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