Describe the following features occurring during anaphase stage of animal cell division: (a) Division of centromere, (b) Formation of daughter chromosome, (c) Types of spindle fibre, (d) Movement of daughter chromosome towards pole, (e) Formation of stern body.
WBBSE
Class X
Life Science
02 (a) Cell Division and Cell Cycle
05 Mark
2025
Anaphase ensures equal chromosome distribution.
(a) Centromere divides longitudinally into two.
(b) Each chromatid becomes a separate daughter chromosome.
(c) Chromosomal (contractile, pulling chromosomes), continuous (interzonal, stretching poles), astral fibres.
(d) Daughter chromosomes pulled to poles by shortening chromosomal fibres.
(e) Stern body (midbody) forms from remaining continuous fibres at equator.
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