A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:

During which stage of mitosis do the sister chromatids separate and move towards opposite poles?

In which stage of cell division, chromosomes are most condensed?

Spindle fibre is made up of

I. Phases of cell cycle are controlled by proteins, …A… and …B…

II. There are two regulatory mechanisms, called …C… which take decision about cell division.

III. The second check point, called …D… is responsible for transition from ${G_2}$ to M-phase.

Identify A-D to complete the given statements (I-III)

Centrioles undergo duplication during (i) of (ii), and begin to move towards opposite poles of the cell during (iii) stage of (iv)

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

Centrioles undergo duplication during (i) of (ii), and begin to move towards opposite poles of the cell during (iii) stage of (iv)

I. Chromosomes cluster at opposite spindle poles their identity is lost as discrete elements

II. Nuclear envelope assembles around the chromosome clusters

III. Nucleolus, Golgi complex and ER reform

Above features indicates which phase of mitosis

In which phase of mitosis does the nuclear envelope begin to reform around the separated chromosomes?

In a cell cycle, which structures serves as the site of attachment of spindle fibres?