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
Related Questions
During which phase of mitosis do the sister chromatids begin to separate and move towards opposite poles of the cell?
Prophase
Metaphase
Anaphase
Telophase
If a cell has a twice as much DNA as in a normal functional cell it means that the cell
Is preparing to divide
Has completed division
Has reached the end of its life span
Has ceased to function
The coconut water from tender coconut represents:
Endocarp
Fleshy mesocarp
Free nuclear proembryo
Free nuclear endosperm
If a cell undergoing division exhibits synapsis and crossing over, which type of cell division is it NOT undergoing?
Mitosis
Meiosis I
Meiosis II
Binary fission
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
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
Which of the following statements (events) is/are true for mitotic telophase?
Nucleolus, GB and ER form
NM assembles around each chromosomes clusters
Arrival of chromosomes cluster at opposite poles and loss of their identity as discrete elements
All of the above
Choose the correct combination of options to select the correct statement for prophase
I. Chromosomal material condenses to form compact mitotic chromosomes
II. The assembly of mitotic spindle is initiated by the microtubules
III. Cells do not show organelles when viewed under the prophase
IV. The nucleolus or nucleoli degenerate completely
I, II and III
I, II and IV
II, III and IV
I, III and IV
During cell division, chromosome attaches with spindles
Kinetochore
Centrosome
Centriole
Secondary constriction
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.
