Cell Life Cycle

Chapter 2

Interphase

series of changes a cell goes through

G1 phase

growth 1 phase, the first part of interphase = centrioles begin to replicate near the end of G1

S (synthetic) phase

DNA replicates itself = ensures that daughter cells receive identical copies of the genetic material

G2 phase

Centrioles finish copying themselves = during S and G2 phases, the cell carries on normal activities

Mitotic phase

cells divide during this stage

Mitosis

division of the nucleus during cell division

Prophase (1)

chromatin threads condense into chromosomes and the centrioles continue moving away from each other; DNA thickens

Early Prophase

chromatin threads condense into chromosomes

Late Prophase

centrioles continue moving away from each other

Metaphase (2)

Chromosomes cluster at the middle of the cell, centromeres are aligned along the equator

Anaphase (3)

centromeres of chromosomes split

Telephase (4)

begins as chromosomal movement stops, chromosomes at opposite poles of the cell uncoil, and a new nuclear membrane form

Cytokinesis

completes the division of the cell into two daughter cells