Presentation is loading. Please wait.

Presentation is loading. Please wait.

The Cell Cycle. Chromosomes Carry genetic information in eukaryotes Carry genetic information in eukaryotes Made of DNA and proteins Made of DNA and proteins.

Similar presentations


Presentation on theme: "The Cell Cycle. Chromosomes Carry genetic information in eukaryotes Carry genetic information in eukaryotes Made of DNA and proteins Made of DNA and proteins."— Presentation transcript:

1 The Cell Cycle

2 Chromosomes Carry genetic information in eukaryotes Carry genetic information in eukaryotes Made of DNA and proteins Made of DNA and proteins Not visible in cell, unless the cell is dividing Not visible in cell, unless the cell is dividing 2 identical chromatids (sister 2 identical chromatids (sister chromatids) make up 1 chromosome chromatids) make up 1 chromosome Centromere is the point where the Centromere is the point where the sister chromatids attach sister chromatids attach

3 The Cell Cycle During the cell cycle the cell grows, prepares for division, and forms 2 daughter cells During the cell cycle the cell grows, prepares for division, and forms 2 daughter cells The longest phase of the cell cycle is interphase The longest phase of the cell cycle is interphase

4 Interphase Consists of G 1, S, and G 2 Consists of G 1, S, and G 2 G 1 : cell grows the most, makes proteins and organelles G 1 : cell grows the most, makes proteins and organelles S: DNA copies S: DNA copies G 2 : shortest, organelles associated with division produced G 2 : shortest, organelles associated with division produced

5 Mitosis Process of nuclear division Process of nuclear division Made up of 4 phases:prophase, metaphase, anaphase and telophase Made up of 4 phases:prophase, metaphase, anaphase and telophase Centrioles are located in the cytoplasm and are necessary for division, they help organize the spindle Centrioles are located in the cytoplasm and are necessary for division, they help organize the spindle Spindle fibers are microtubules that move the chromosomes during mitosis Spindle fibers are microtubules that move the chromosomes during mitosis

6 Prophase Chromatin condense Chromatin condense Centrioles separate Centrioles separate Spindle begins to form Spindle begins to form Nuclear membrane breaks down Nuclear membrane breaks down

7 Metaphase Chromosomes line up on “equator” Chromosomes line up on “equator” Chromosomes connect to spindle Chromosomes connect to spindle

8 Anaphase Sister chromatids separate into individual chromosomes Sister chromatids separate into individual chromosomes

9 Telophase Chromosomes gather at poles Chromosomes gather at poles Chromosomes loose their distinct shape Chromosomes loose their distinct shape Nuclear membrane forms Nuclear membrane forms

10 Cytokinesis Division of the cytoplasm Division of the cytoplasm Cell “pinches” in half at the cleavage furrow Cell “pinches” in half at the cleavage furrow Results in 2 identical daughter cells with same chromosomes Results in 2 identical daughter cells with same chromosomes

11 Mitosis Video 1 Mitosis Video 1 Mitosis Video 1 Mitosis Video 1


Download ppt "The Cell Cycle. Chromosomes Carry genetic information in eukaryotes Carry genetic information in eukaryotes Made of DNA and proteins Made of DNA and proteins."

Similar presentations


Ads by Google