Which of the following accurately describes the role of motor proteins during anaphase of mitosis?
Kinesins move chromosomes towards the minus ends of kinetochore microtubules, and dyneins move chromosomes towards the plus ends.
Dyneins move chromosomes towards the poles along kinetochore microtubules, while kinesins are involved in cytokinesis.
Kinesins move chromosomes towards the plus ends of kinetochore microtubules, while dyneins move the poles apart by acting on astral microtubules.
Both kinesins and dyneins move chromosomes towards the poles along kinetochore microtubules, with kinesins acting on the leading edge and dyneins on the trailing edge.
Related Questions
Small disc-shaped structures at the surface of the centromeres that appear during metaphase are
Kinetochores
Metaphase plate
Spindle fibres
Chromatid
Which of the following events does NOT occur during prometaphase of mitosis?
Breakdown of the nuclear envelope
Attachment of kinetochore microtubules to chromosomes
Movement of chromosomes towards the metaphase plate
Replication of the centrosomes
In cell cycle, during which phase chromosomes are arranged at equatorial plate?
Metaphase
Anaphase
Telophase
Prophase
The complete disintegration of nuclear envelope in a cell cycle marks the
Start of prophase of mitosis
Start of metaphase of mitosis
End of anaphase of mitosis
Start of telophase of mitosis
In an experiment, cells are arrested in metaphase using colchicine, a drug that inhibits microtubule polymerization. If these cells are then fused with cells in G1 phase, what is the most likely outcome for the G1 chromosomes?
The G1 chromosomes will replicate their DNA.
The G1 chromosomes will condense prematurely.
The G1 chromosomes will remain unaffected.
The G1 chromosomes will fragment.
Which of the following options gives the correct sequence of events during mitosis?
Prophase, Metaphase, Anaphase, Telophase
Metaphase, Prophase, Anaphase, Telophase
Anaphase, Telophase, Prophase, Metaphase
Telophase, Anaphase, Metaphase, Prophase
The plane of alignment of chromosome at the metaphase stage of cell cycle is referred to as the
Prophase plate
Metaphase plate
Anaphase plate
Telophase plate
Congression is a phenomenon of
Movement of sister chromatids towards the poles
Pairing of homologous chromosomes
Separation of paired chromosomes
Bringing the chromosomes on equator of spindle apparatus
In which phase of mitosis do chromosomes align at the center of the cell?
Prophase
Metaphase
Anaphase
Telophase
The arrangement of chromosomes at the equatorial plate is characteristic of which stage of mitosis?
Prophase
Metaphase
Anaphase
Telophase
