Name the stage of M phase in which the following events occur. Place the numbers 1–8 next to the letter headings to indicate the normal order of events
A. alignment of the chromosomes at the spindle equator
B. attachment of spindle microtubules to chromosomes
C. breakdown of nuclear envelope
D. pinching of cell in two
E. separation of two centrosomes and initiation of mitotic spindle assembly
F. re-formation of the nuclear envelope
G. condensation of the chromosomes
H. separation of sister chromatids
A. 5, metaphase
B. 4, prometaphase
C. 3, prometaphase
D. 8, cytokinesis
E. 2, prophase
F. 7, telophase
G. 1, prophase
H. 6, anaphase
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