Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

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Transcript of Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Page 1: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Reproduction

Page 2: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Viral Reproduction

Page 3: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Viruses

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Prokaryotic Reproduction

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Bacterial Fission

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Eukaryotic Reproduction

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Chromosome Structure

Page 8: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Mitotic Figures - Allium Allium Root Meristem - A Region of Cell Division

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Three kinds of eukaryotic cell reproduction

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Eukaryotic Life Cycles

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Cell Cycle

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Chromosome StructureMonads and Dyads

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Dyad Chromosomes

Page 14: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

Ploidy and Chromosome Structure

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Mitosis

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Mitosis

Page 17: Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

A Metaphase Spindle

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Mitotic Phases - Plant

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Sexual ReproductionMeiosis and Syngamy

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Eukaryotic Life Cycle

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Meiosis

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Meiosis

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Meiosis I Bivalent

2 paired homologues(4 chromatids)

5 cross-overs

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Why Did Meiosis Evolve?

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Crossing-over Requires Multiple Heterozygosity

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Syngamy Produces Heterozygosity Required for Meiosis to Function

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Spindle Connections inCell Divisions

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Syngamy SEM

Syngamy (Fertilization)Fusion of an Egg and a Sperm

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Sperm, Egg, and Zygote


1 CHAPTER 4 VIRUSES MONERA STRUCTURE AND SHAPE CLASSIFICATION REPRODUCTION RETROVIRUS ORIGIN OF VIRSUSES CLASSIFICATION STRUCTURE ECOLOGY/ ADAPTATION REPRODUCTION.

1 CHAPTER 4 VIRUSES MONERA STRUCTURE AND SHAPE CLASSIFICATION REPRODUCTION RETROVIRUS ORIGIN OF VIRSUSES CLASSIFICATION STRUCTURE ECOLOGY/ ADAPTATION REPRODUCTION.

Chapter 5 Viruses. 5.1 General Properties of Viruses 5.2 General Features of Virus Reproduction 5.3 Overview of Bacterial Viruses 5.4 Temperate Bacteriophages:

Chapter 5 Viruses. 5.1 General Properties of Viruses 5.2 General Features of Virus Reproduction 5.3 Overview of Bacterial Viruses 5.4 Temperate Bacteriophages:

11.01: Explain the difference between viruses and prokaryotic organisms in order to distinguish characteristics of life.

11.01: Explain the difference between viruses and prokaryotic organisms in order to distinguish characteristics of life.

Bacteria and Viruses - web.biosci.utexas.eduweb.biosci.utexas.edu/zhao/bio301L/PDF-Documents/Lecture3.pdfI. Monera –Prokaryotic Organisms * Key Concepts •Characteristics •Growth

Bacteria and Viruses - web.biosci.utexas.eduweb.biosci.utexas.edu/zhao/bio301L/PDF-Documents/Lecture3.pdfI. Monera –Prokaryotic Organisms * Key Concepts •Characteristics •Growth

Weinbauer M.G. Ecology of Prokaryotic Viruses. 2004. FEMS Microbiology Reviews 28 127-181

Weinbauer M.G. Ecology of Prokaryotic Viruses. 2004. FEMS Microbiology Reviews 28 127-181

Uttarakhand Open University - BLOCK I: MICROBIOLOGY · 2019. 12. 13. · UTTARAKHAND OPEN UNIVERSITY Page 5 Viruses as agents of diseases: Viruses infect both eukaryotic and prokaryotic

Uttarakhand Open University - BLOCK I: MICROBIOLOGY · 2019. 12. 13. · UTTARAKHAND OPEN UNIVERSITY Page 5 Viruses as agents of diseases: Viruses infect both eukaryotic and prokaryotic

Structure of Viruses All viruses are composed of: – Nucleic acids: Virus’s genetic material DNA or RNA Code solely for reproduction – Capsid: Protein coat.

Structure of Viruses All viruses are composed of: – Nucleic acids: Virus’s genetic material DNA or RNA Code solely for reproduction – Capsid: Protein coat.

Meiosis & Sexual Reproduction. Asexual Reproduction The prokaryotic chromosome is a ring of DNA Binary fission –Splitting in two –Two replicate chromosomes.

Meiosis & Sexual Reproduction. Asexual Reproduction The prokaryotic chromosome is a ring of DNA Binary fission –Splitting in two –Two replicate chromosomes.

1 Viruses Page 328. At the boundary of life, between the macromolecules (which are not alive) and the prokaryotic cells (which are alive), lie the viruses.

1 Viruses Page 328. At the boundary of life, between the macromolecules (which are not alive) and the prokaryotic cells (which are alive), lie the viruses.

Study of prokaryotic viruses in freshwater lakes reveals high lytic

Study of prokaryotic viruses in freshwater lakes reveals high lytic

Prokaryotic cell reproduction Binary Fission. Eukaryotic Cell Cycle.

Prokaryotic cell reproduction Binary Fission. Eukaryotic Cell Cycle.

Bacteria, Viruses, Prions, and Protists. Bacteria Unicellular or Multicellular? Prokaryotic or Eukaryotic? Cells Walls?

Bacteria, Viruses, Prions, and Protists. Bacteria Unicellular or Multicellular? Prokaryotic or Eukaryotic? Cells Walls?

P ROKARYOTES AND V IRUSES Eubacteria – Structure, Metabolism and Reproduction Archaea – Structure, Metabolism and Reproduction Viruses – Structure, Metabolism.

P ROKARYOTES AND V IRUSES Eubacteria – Structure, Metabolism and Reproduction Archaea – Structure, Metabolism and Reproduction Viruses – Structure, Metabolism.

Prokaryotic Life Characteristics Reproduction Evolution.

Prokaryotic Life Characteristics Reproduction Evolution.

Reproduction of Prokaryotic Cell

Reproduction of Prokaryotic Cell

Viruses. At the boundary of life, between the macromolecules (which are not alive) and the prokaryotic cells (which are), lie the viruses and bacteriophages.

Viruses. At the boundary of life, between the macromolecules (which are not alive) and the prokaryotic cells (which are), lie the viruses and bacteriophages.

Viruses. Viruses Viruses are not strictly alive, because they do not carry out their own life activities and reproduction. In other words, without a host.

Viruses. Viruses Viruses are not strictly alive, because they do not carry out their own life activities and reproduction. In other words, without a host.

Structure of DNA...1. Reproduction 2. Growth and development 3. Tissue renewal Prokaryotic Chromosomes and Cell Division • Prokaryotic Genomes – Bacterial Chromosomes- Single strands

Structure of DNA...1. Reproduction 2. Growth and development 3. Tissue renewal Prokaryotic Chromosomes and Cell Division • Prokaryotic Genomes – Bacterial Chromosomes- Single strands

CHAPTER 19 NOTES VIRUSES CHARACTERISTICS OF VIRUSES Prokaryotic or Eukaryotic: Neither (no organelles or membranes) Unicellular or Multicellular: Neither.

CHAPTER 19 NOTES VIRUSES CHARACTERISTICS OF VIRUSES Prokaryotic or Eukaryotic: Neither (no organelles or membranes) Unicellular or Multicellular: Neither.

Bacteria and Viruses AP Biology Bacteria Very diverse Most abundant Prokaryotic Single chromosome; some have a plasmid Usually a cell wall Prokaryotic.

Bacteria and Viruses AP Biology Bacteria Very diverse Most abundant Prokaryotic Single chromosome; some have a plasmid Usually a cell wall Prokaryotic.