Cell Cycle Stages WS

Cell Cycle Stages Worksheet Write the events in the correct steps of the cell cycle. Stage Events G1 Interphase

Name

Per. Events to place in order chromosomes line up in the middle of cell spindle fibers attach to centromere of chromatids

G0

chromosomes condense into rod-like structures chromatids are pulled apart by spindle fibers

Mitosis

S

spindle fibers start to appear

G2

formation of cell plate in plant cells

Prophase

spindle fibers disappear DNA replicated formation of 2 daughter cells resting period

Metaphase

centrioles move toward opposite ends of cell nuclear membrane reappears

Anaphase Telophase

organelles are doubled protein synthesis chromosomes start to lose rod-like shape nuclear membrane disappears cell membrane pinches in to divide cytoplasm

Cytokinesis

cell metabolism (uses macromolecules) formation of 2 nuclei restriction point commits to complete cycle

Word Bank anaphase centrioles centromere chromatid

chromatin chromosome cytokinesis gene

homologous chromosomes interphase metaphase mitosis

Key Term

prophase sister chromatids spindle fibers telophase

Definition

1.

duplicated strands of DNA

2.

structures that pull duplicated DNA away from each other

3.

a long polymer of DNA that codes for many traits

4.

a segment of DNA that codes for a specific trait

5.

structures that hold duplicated DNA together

6.

phase of non-division in which the cell grows

7.

structures that are located on opposite ends of the dividing cell to where chromosomes move

8.

rod-like DNA

9.

string-like DNA

10.

maternal & paternal pairs that code for the same genes

11.

period in which the nucleus divides