CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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prophase
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nucleus
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spindle fibers
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gene
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Detailed explanation-1: -So, the correct answer is ‘Kinetochore ’.
Detailed explanation-2: -The spindle, shown in Figurebelow, consists of fibers made of microtubules. Spindle. The spindle starts to form during prophase of mitosis. Kinetochores on the spindle attach to the centromeres of sister chromatids.
Detailed explanation-3: -Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis.
Detailed explanation-4: -Ultrastructural analysis revealed a dense structure of proteins called the kinetochore, which is assembled on the centromere. The kinetochore binds to the mitotic spindle and moves chromosomes along it.
Detailed explanation-5: -Spindle fibres attach to kinetochore of chromosomes during metaphase.