If centrioles are absent in plant cells, then from where do the spindle fibres arise during cell division in plants??

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Solution

Dear student,

Plants cells lack centrioles but these structures are present in centrosome, which is the main site of spindle formation. Thus spindle fibres forms from centrosome as in these cells only segregation of chromosomes takes place.

Regards

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As spindle fibres are formed by centrioles during mitosis. But they are absent in plant cells. So who forms spindle fibres in plants in order to carry out mitosis.

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Q. Sir
How does mitosis occur in plants without centrioles and centrosomes. We are taught that spindle fibres are formed by centrioles moving to opposite poles of the cell and plant cells don't posses centrioles. Then how is the spindle apparatus is formed and constricted to divide the chromatids.

How does plant chromosomes gets separated without centriole? How spindle fibres are made in plant cell?

Q. In animal cells, spindle fibres arise from

Q. Choose the correct options from the following:
A. Centrioles are made up of nine evenly spaced peripheral fibrils of tubulin.
B. The centrioles in a centrosome lie parallel to each other.
C. The central part of the centriole is also proteinaceous and called the hub.
D. Centrioles form the spindle fibres that give rise to spindle apparatus during cell division.

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If centrioles are absent in plant cells, then from where do the spindle fibres arise during cell division in plants??

Dear student, Plants cells lack centrioles but these structures are present in centrosome, which is the main site of spindle formation. Thus spindle fibres forms from centrosome as in these cells only segregation of chromosomes takes place. Regards

Dear student,

Plants cells lack centrioles but these structures are present in centrosome, which is the main site of spindle formation. Thus spindle fibres forms from centrosome as in these cells only segregation of chromosomes takes place.

Regards