Question

Stage in Cell Cycle.	Defining Features
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

Answer 1

Stage in Cell Cycle.	Defining Features
Interphase	During interphase, the cell grows replicates its DNA and prepares for mitosis. The nucleolus and the nuclear envelope are distinct and the chromosomes are in the form of thread like chromatin.
Prophase	Chromosomes condense and become visible. Spindle fibres emerge from the centrosomes. Nuclear envelope breaks down. Centrosomes move toward opposite poles.
Metaphase	Thick, coiled chromosomes each with two chromatids are lined up on the metaphase plate (equatorial plane).    Each sister chromatid is attached to a spindle fibre (microtubules) orginating from opposite poles.
Anaphase	Centromeres split into two. Sister chromatids are pulled toward opposite poles and become individual chromosomes. The poles move apart and microtubules get shorter.
Telophase	Chromosomes arrive at opposite poles and begin to decondense. Nuclear envelope material surrounds each set of chromosomes. The mitotic spindle breaks down and continues to push poles apart. A belt-like contractile ring of actin filaments develops in the peripheral cytoplasm at the cells equator.
Ctyokinesis	Constriction of the ring produces a cleavage furrow. Cytoplasm and its organelles are divided into two daughter cells, each with one nucleus.