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Copyright © 2009 Pearson Education, Inc. Chapter 2 Mitosis and Meiosis Copyright © 2009 Pearson Education, Inc.
What do you remember about mitosis and meiosis?
Copyright © 2009 Pearson Education, Inc. Figure 2.3
Copyright © 2009 Pearson Education, Inc. Figure 2.4 Karyotype
Copyright © 2009 Pearson Education, Inc. Table 2.1
Copyright © 2009 Pearson Education, Inc. Cell Division Divided into two broad processes Karyokenesis – nuclear division Cytokenesis – cytoplasmic division
Copyright © 2009 Pearson Education, Inc. Figure 2.5 Cell Cycle
Copyright © 2009 Pearson Education, Inc. Figure 2.7a Interphase
Copyright © 2009 Pearson Education, Inc. Figure 2.7b Prophase
Copyright © 2009 Pearson Education, Inc. Figure 2.7c Prometaphase and Metaphase
Copyright © 2009 Pearson Education, Inc. Figure 2.7e Anaphase
Copyright © 2009 Pearson Education, Inc. Figure 2.7f Telophase
Copyright © 2009 Pearson Education, Inc. Meiosis Remember: Goal is to reduce the genetic material by ½ Evolutionarily, meiosis is important because it leads to genetic variation Random distribution of maternal and paternal chromosomes Crossing over during prophase I Random fertilization (not part of meiosis)
Copyright © 2009 Pearson Education, Inc. Figure 2.8
Copyright © 2009 Pearson Education, Inc. Figure 2.9 Prophase I
Copyright © 2009 Pearson Education, Inc. Figure 2.10
Copyright © 2009 Pearson Education, Inc. Figure 2.11 Spermatogenesis Vs. Oogenesis
Copyright © 2009 Pearson Education, Inc. Click to edit Master tit Chapter 2 Lecture Concepts of Genetics Tenth Edition Mitosis and Meiosis.
Copyright © 2009 Pearson Education, Inc. Art and Photos in PowerPoint ® Concepts of Genetics Ninth Edition Klug, Cummings, Spencer, Palladino Chapter 2.
Cell Division – a review. Cell Cycle Control: What happens at each checkpoint? M = mitosis (nuclear division) C = cytokinesis (cytoplasmic division) G.
Copyright © 2010 Pearson Education Inc.
BioFlix Animations Meiosis Slide Show Copyright © 2007 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
IPMATPMAT Meiosis includes Prophase II, Metaphase II, Anaphase II, and Telophase II.
The mitotic (M) phase of the cell cycle alternates with the much longer interphase. The M phase includes mitosis and cytokinesis. Stages of mitosis prophase.
Cell Reproduction Chapters 9 & 11. Types of Reproduction Mitosis Asexual – only 1 parent needed & the offspring are identical to the parent cell. Meiosis.
Meiosis Chapter 11.4 Objectives Describe how homologous chromosomes are alike and how they differ Contrast haploid and diploid cells Summarize the process.
Chromosomes and Cellular Reproduction Prokaryote and Eukaryote Cell Reproduction Sexual Reproduction.
MEIOSIS Chapter 11. I. Meiosis A. Nuclear division that produces sex cells /gametes B. In REPRODUCTIVE ORGANS only C. 2 divisions: Meiosis I & Meiosis.
Meiosis and Mutations. Remember: Mitosis - takes place in regular body cells (somatic cells) and you end up with 2 identical diploid (2n) cells where.
M ITOSIS & M EIOSIS R EVIEW Two Cell Division Processes.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece.
Sperm and egg. Chapter 10 - MEIOSIS. Figure 10.1a The word chromosome comes from the Greek χρ ῶ μα (chroma, colour) and σ ῶ μα (soma, body) due to their.
CELL CYCLE BY: DEVIN MARIANNINO. MITOSIS Division of the nucleus 4 phases
AQA Biology AS Level Unit 2
Meiosis Forming haploid cells for sexual reproduction.
Mariah Harding The stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle. Figure 1
Sexual Reproduction and Genetics Section 1- Meiosis
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Figure 3.30 Cell Cycle Interphase Growth (G 1 ), synthesis (S), growth (G.
Biology 30 Unit 2: Reproduction and Development Cell Division & Life Cycles.
Human body cells have 46 chromosomes Meiosis Sexual Reproduction and Genetics Each parent contributes 23 chromosomes Section 1 Homologous chromosomes—one.
PHASES OF MITOSIS. WHICH PHASE? (1) Telophase Telophase.
Cell Reproduction n Mitosis – asexual reproduction –1 cell produces 2 identical cells n Meiosis – sexual reproduction –1 parent cell produces 4 cells with.
Chapter 3: Cells Part IV: The Cell Cycle Control of Cell Division Stem and Progenitor Cells.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology: Concepts and Connections, Fifth Edition – Campbell,
AP Biology Chapter 10 Meiosis.
Section 8-3 Meiosis. Obj 9: List and describe the phases of meiosis Meiosis I: Preceded by copying of DNA in interphase.
What is Meiosis Exactly? Meiosis is a form of cell division that halves the number of chromosomes when forming specialized reproductive cells such as gametes.
Unit 3 Part II – The Cell. A form of cell division happening in sexually reproducing organisms. Consists of 2 consecutive cell divisions (meiosis.
Unit 4 – Growth & Reproduction
Chapter 7 Meiosis & Sexual Reproduction. Do you remember… (mitosis) This chapter deals with making cells that are genetically different through meiosis!
Meiosis The Production of Sex Cells. How many chromosomes does a human body cell have? 46.
DIPLOID Diploid = 2(n) In humans: n=23 chromosomes 2(n)= 46 total chromosomes 2 sets of each chromosomes Somatic cells are diploid Body Cells (nerve, muscle,
1 Chromosomes and Mitosis Chapter 1 Thompson and Thompson.
Formation of Haploid Cells Meiosis- for of cell division that halves the number of chromosomes when forming specialized reproductive cells such as gametes.
Meiosis Chapter 10, Section 2.
What occurs during the phases of meiosis?
Meiosis Sex cell (gamete) division= egg and sperm Sex cell (gamete) division= egg and sperm Products= 4 cells all haploid, genetically different Products=
Meiosis Chapter 11.4.
Cell Division: all cells come from pre- existing cells.
Cell Division Section 8-2. Objectives 4 Describe the events of binary fission Describe each phase of the cell cycle 4 Summarize the phases of mitosis.
The Cell Cycle & Cell Division
Genetics. Genetics Chapter Ten: Reproduction 10.1 Growth and Cell Reproduction 10.2 Sexual Reproduction and Meiosis.
Biological Relationship of Mitosis and Meiosis
Meiosis and Fertilization my-OH-sis. Meiosis is cell division used for: Producing gametes (sex cells) What is Meiosis? ***Makes 4 different cells!***
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