HELLO STUDENTS: DAY- 36 Morning
CELL CYCLE AND CELL DIVISION
IMPORTANT TERMS:
· Aster:Star-like structure formed of centriole pairs and radiating microtubular fibrils.
· Bivalent:A pair of homologous chromosome lying side by side during zygotene.
· Chiasmata: Visible points of crossing over between homologous chromosomes during diplotene.
· Crossing over: Exchange of similar segments between non sister chromatids of homologous chromosomes usually takes place during pachytene stage.
· Equatorial Plate: Plate –like structure formed due to lining up the chromosomes at equator of spindle during metaphase.
· Phragmoplast:Spindle that persists during cytokinensis in plant cells.
Mr. A. KINGSLIN M.Sc, BEd, Phd,(doing)
Post Graduate Teacher in Botany
St. Mary Goretty Hr. Sec School, Manalikarai
Kanyakumari district
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