Phase of Cell Cycle

Phase of Cell Cycle - • Mitotic spindle is complete •...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
PHASE OF THE CELL CYCLE INTERPHASE (Longest Phase) G1 (Gap Phase) •  NO DNA Synthesis •  Metabolic activity S Phase (Synthesis Stage) •  Chromosome replicates •  After replication: Each chromosome consists of 2 chromatids are exact copies of each other G2 Phase (Gap II Phase) •  Metabolic activities •  Cell is preparing for Mitosis (protein synthesis) M PHASE ( MITOSIS) Prophase •  Chromatin condenses into duplicated chromosomes •  Nuclear envelope begins to disappear •  Mitotic spindle begins to form •  Cytoskeleton begins to disassemble Prometaphase •  Spindle microtubules attach to kinetochores of chromosomes •  Chromosomes begin to move toward cell’s midplane •  Nuclear envelope breaks down completely •  Nucleolus shrinks Metaphase •  Chromosomes align on cell’s metaphase plate (midplate)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: • Mitotic spindle is complete • Microtubules attach kinetochores of sister chromatids to opposite poles of cell Anaphase • Sister chromatids separate by spindle & microtubules (Move to opposite poles) • Kinetochore Microtubules get shorter • Each former chromatid is now a chromosome Telophase • Nuclear envelope reforms • Nucleoli appear • Chromosomes uncoil • Spindle disappears CYTOKINESIS (ANIMALS & PLANTS) Animal Cells • Cleavage Furrow is formed in the cytoplasmic constriction • Microfilaments: actin-contractile protein Plant Cells • Cell Plate is formed • Middle Lamella cements the primary cells wall together • Vesicle membrane fuse together and form the plasma membrane of the 2 daughter cells...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online