At which stage of cell cycle colchicine arrests the spindle?
Anaphase
Prophase
Telophase
Interphase
Related Questions
During telophase, a plant cell is observed to have twice the number of chromosomes as other cells at the same stage. No cell plate is forming. This suggests a problem with which process, and what is the likely consequence?
Mitosis; cell death
Meiosis; formation of gametes
Cytokinesis; polyploid cell formation
Interphase; DNA replication error
During which phase of the cell cycle does DNA replication occur, which is a prerequisite for mitosis?
G1 phase
S phase
G2 phase
M phase
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
Centrioles undergo duplication during (i) of (ii), and begin to move towards opposite poles of the cell during (iii) stage of (iv)
i-S phase, ii-inter phase, iii- Prophase, iv-Mitosis
i-S phase, ii-Inter phase, iii-Anaphase, iv- Mitosis
i-Prophase, ii-Mitosis, iii-Metaphase, iv- Mitosis
i-Prophase, ii-Mitosis, iii-Anaphase, iv-Mitosis
If cytokinesis fails during telophase in a plant cell, what would be the observed chromosome number in the resulting cell, and what structure would be missing?
Half the normal number; cell wall
Double the normal number; cell plate
Normal number; nuclear membrane
Triple the normal number; spindle fibers
Identify A-C in the given statements, and choose the correct option
I. Spindle microtubules that extend from the two poles of a dividing cell are called …A…
II. A centromere connects two identical copies of a single chromosomes. These two copies are called …B…
III. In ‘X’ phase, the paired chromosomes separate and begin moving to opposite ends of the cell. This ‘X’ is called …C…
A-kinetochore fibres; B-chromatids; C-metaphase
A-polar fibres; B-homologous chromosomes; C-Prophase
A-polar fibres; B-sister chromatids; C-anaphase
A-kinetochore fibres; B-asters; C-anaphase
A scientist observes a dividing cell under a microscope. No crossing over is observed. Which type of cell division is MOST likely being observed?
Meiosis I
Meiosis II
Mitosis
Cytokinesis
The alignment of chromosomes at the metaphase plate occurs during which phase of mitosis?
Prophase
Metaphase
Anaphase
Telophase
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.
Which of the following stage of mitosis follows the S and -phases of interphases?
Prophase
Metaphase
Anaphase
Telophase