Cell Cycle and Cell Division

Slides:



Advertisements
Similar presentations
Mitosis and the Cell Cycle
Advertisements

Cell Cycle IPMATC.
Mitosis and Cytokinesis

Chapter 6 Chromosomes and Cell Reproduction
How do cells grow & reproduce?. In the Beginning – One Cell Most of the organisms start out as one cell Humans start out as a single cell, the zygote,
1. 2 Cell Cycle… Does your cell cycle look something like this? 3.
Karyotype A picture of the chromosomes from a human cell arranged in pairs by size First 22 pairs are called autosomes Last pair are the sex chromosomes.
Warm-up 12/2: Why do cells replicate their DNA? When do cells replicate their DNA? What is the primary purpose of DNA?
The Cell Cycle & Cell Division
The Cell Cycle and MitosisCell Cycle. Chromosomes o Made of DNA o Each chromosome consists of two sister chromatids attached at a centromere.
Thursday Unit 6 Notes: Meiosis-1.
The cell cycle Mitosis is only one section of the life cycle of a cell. Interphase is the main part of the cell cycle. This is where DNA is replicated.
What do they do? Stages What’s Going on? What is It?
Lesson 9.3: Meiosis: The Life Cycle of Sex Cells Goals: Identify male and female gametes Compare chromosome numbers between somatic cells and gametes.
The Cell Cycle WELCOME TO MY MAGIC SHOW!. First, I am going to make a very small ball turn into a larger ball. Then, I am going to make the larger ball.
Cell Cycle and Cell Division
CELL CYCLE BY: DEVIN MARIANNINO. MITOSIS Division of the nucleus 4 phases
GENETICS.
Phases of the Cell Cycle Interphase and Mitosis. Interphase G1 : Cell Grows G1 : Cell Grows S : DNA is copied (to produce a diploid # S : DNA is copied.
Cell Division 7 th grade. Cell Division Animal Cell Plant Cell Photographs from:
Jeopardy!. MitosisMeiosisVocabulary Mitosis, Meiosis or Both Cell Division Cell Cycle
The Cell Cycle Cell Division.
Why Do cells Go through Meiosis? Cells go through Meiosis in order to make Sex Cells Sex cells are also called Gametes Four Daughter Cells are created.
Chapter 3 Lesson 1 From Cell to Organism Cell Cycle and Cell Division.
 Growth  Reproduction  Repair Why do cells divide?
The Cell Cycle. THE CELL CYCLE The Cell Cycle Cell Reproduction –One cell (parent cell) reproduces to make 2 identical cells (daughter cells)
The Cell Cycle & Cell Division
The Cell Cycle: Mitosis Notes. Facts * Somatic cells – “soma” means body * Body cells each contain the same number of chromosomes *How many chromosomes.
Mitosis and the Cell Cycle
The Cell Cycle Foldable
AIM: What are the phases of the Cell Cycle?
What stage is it?? The sister chromatids are moving apart.
1.2 The Cell Cycle & Mitosis
How does the cell know how to divide?
The Cell Cycle and Mitosis

Cell Division.
***DRAW ALL PICTURES***
MITOSIS
GENETICS.
Cell Cycle & Mitosis Review
Cell Cycle: Interphase & Mitosis
How does the cell know how to divide?
Vocabulary Prophase Metaphase Anaphase Telophase.
Mitosis and the Cell Cycle
Mitosis and the Cell Cycle
Mitosis and the Cell Cycle
Mitosis and the Cell Cycle
Cell Cycle and Cell Division
Week 7 Vocab Definitions
Meiosis I results in 2 haploid daughter cells
GENETICS.
How does the cell know how to divide?
How does the cell know how to divide?
The Cell Cycle Foldable
Ch 6 – Chromosomes & Cell Reproduction.
Cell Growth and Division
The Cell Cycle & Cell Division
S phase- DNA replication
The Cell Cycle & Cell Division
Mitosis and the Cell Cycle
Cell Division & Mitosis
The Cell Cycle & Cell Division
The Cell Cycle & Cell Division
Meiosis Phases.
Meiosis SC Standard B4.5- The student will be able to summarize the characteristics of the phases of Meiosis I and II.
Cell division is necessary for normal growth, repair, and reproduction of an organism.
The Cell Cycle & Cell Division
How does the cell know how to divide?
Presentation transcript:

Cell Cycle and Cell Division

BIG PICTURE

Mitosis 2n 2n 2n One (Diploid) Cell becomes Two (Diploid) Cells Example : Cats Somatic Cells have 38 (2n) chromosomes Sex cells have 19 (n) chromosomes

Chromosomes Contain the genetic information How this information is transmitted from one cell to another 2 sister chromatids DNA Replication Centromere Arm Genes/DNA Chromosome (unduplicated) Chromosome (duplicated)

A Chromosome

Number of Chromosomes Types of Chromosomes (Humans) Body (Autosomes) – 44 chromosomes (22 pairs) Sex – 2 chromosomes (1 pair) (females XX, males XY) Total Number of Chromosomes = 46

Cell Cycle Two main phases: Interphase 3 stages G1 – rapid growth S – DNA replication G2 – prepare for mitosis 2. Mitosis (M) = cell division 4 stages Prophase Metaphase Anaphase Telophase

Mitosis Interphase Cytokinesis Telophase Prophase Anaphase Metaphase

Interphase DNA replication All chromosome have two sister chromatids

Prophase Chromosome formation DNA condenses Nuclear membrane dissolves Centrioles move to opposite poles of cell

Metaphase Centromere of chromosomes joins to spindle fiber Chromosomes line up in the middle of the cell

Anaphase Centromere doubles Chromatids separate and are pulled to opposite poles by the spindle fibers

Telophase Cytokinesis – separation of cytoplasm; Nuclear membrane reappears in the two daughter cells Cytokinesis – separation of cytoplasm; final stage of cell division

Mitosis under the microscope PROPHASE TELOPHASE METAPHASE ANAPHASE

Mitosis Lab –Root Tip Telophase Prophase Anaphase Metaphase Interphase

Vocabulary The Cell Cycle Chromosomes Interphase Mitosis Prophase Metaphase Anaphase Telophase Cytokinesis

Homework Page 44 Questions #1 - 7

Mitosis On the Table Using pipe cleaners and your text, recreate the stages of mitosis on your desk with a partner 1 partner tries each phase, and the other partner checks to make sure it’s done correctly Raise your hand for teacher to check Then switch roles