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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
CELL DIVISION MITOSIS. Stages of Cell Division 1. Interphase 2. Prophase 3. Metaphase 4. Anaphase 5. Telophase.
Meiosis. Diploid to Haploid Crossing Over Synapsis- Homologous Pairs line up = Tetrad During synapsis the chromstids within a homologous pair may.
AQA Biology AS Level Unit 2 Meiosis, Mitosis and the Cell Cycle.
N-6 Cell Division What do cells spend their time doing? Why do they do this?
Meiosis Pgs Human body cells have 46 chromosomes Meiosis - General Overview Sexual Reproduction and Genetics Each parent contributes 23 chromosomes.
EW Title Meiosis 1. Define the term gene. 2. What is the difference between sexual and asexual reproduction?
I.Sexual Reproduction --two parents combine. 1. The sex cell from the male parent is sperm. a. Sperm head is almost all nucleus (genetic info) 2. The.
Cell Cycle IPMATC. Cell Cycle 3 Parts: – Interphase – Mitosis Prophase Metaphase Anaphase Telophase – Cytokinesis.
MEIOSIS AND SEXUAL LIFE CHANGES. YOU MUST KNOW… THE DIFFERENCES BETWEEN ASEXUAL AND SEXUAL REPRODUCTION THE ROLE OF MEIOSIS AND FERTILIZATION IN SEXUALLY.
Cell Division Mitosis Chapter 10. Why do cells divide, rather than continually grow forever? The larger a cell becomes, the more demands the cell places.
Meiosis Chapter 13. Octopus Sex Male reaches under his mantle with tentacle, removes packet of sperm, and insert it into females egg chamber Eggs are.
Cell Division. Two Parts of Cell Division (1) Mitosis – (2) Cytokinesis.
Chapter Meiosis College Prep Biology Mr. Martino.
The Cell Cycle. Chromosomes Carry genetic information in eukaryotes Carry genetic information in eukaryotes Made of DNA and proteins Made of DNA and proteins.
Meiosis Chapter 8 Part II. Octopus Sex Male reaches under his mantle with tentacle, removes packet of sperm, and insert it into females egg chamber Male.
Copyright © by Holt, Rinehart and Winston. All rights reserved. When are sister chromatids formed? When are they separated? When are homologous pairs separated?
Inquiry into Life Twelfth Edition Chapter 5 Lecture PowerPoint to accompany Sylvia S. Mader Copyright © The McGraw-Hill Companies, Inc. Permission required.
Cell Cycle and Cell Division CST Review PowerPoint.
Cell Reproduction Part 1 1. What class of cells is reproduced during mitosis? Germ cells Somatic cells Gametes Haploid cells.
LN #15 Cancer & Cell Cycle. The Cell Cycle Interphase –Period of cell growth and DNA replication Mitosis –Period of cell division Prophase, metaphase,
Phases of Cell Division Interphase (stage between cell division) Interphase (stage between cell division) Prophase Prophase Metaphase Metaphase Anaphase.
AP Biology Mitosis & Meiosis Labs Natalia Sivackova.
SEXUAL REPRODUCTION Sex cells formed by meiosis Requires 2 parents Offspring not identical The process that results in the formation of gametes Sex cells,
What is Mitosis?. Mitosis is Cell Division A regular cell copies its chromosomes, then the cell divides and the new cell receives a nucleus with.
Cell Cycle: M Phase Mitosis and Cytokinesis. Cell Division (M phase) Occurs in two stages – Mitosis (nuclear division) – Cytokinesis (cytoplasmic division)
Biology AHSGE Standard VI- Mitosis and Meiosis. Biology AHSGE CONTENT STANDARD 6. Describe the roles of mitotic and meiotic divisions during reproduction,
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece.
Mitosis –vs- Meiosis Test Review. If the HAPLOID number of an organism is 12, what would the diploid number be? 24.
Meiosis. Meiosis is the type of division which: 1. Reduces the chromosome # from diploid to haploid 2. Is used to produce gametes: eggs and sperm.
Bio Ch 6 Journal. What is a gene? A segment of DNA that codes for a protein, RNA, or specific trait. A segment of DNA that codes for a protein, RNA, or.
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