Program Objectives     Topics Covered       Pricing

Explore Meiosis, an essential process of cell division necessary in forming sex cells, namely sperm, and eggs. Core processes such as prophase II, metaphase II, anaphase II, and telophase II, depicted by graphics that utilize powerful special effects and animations showing each step.

Concise narratives describe in detail all vital aspects of meiosis. To assure mastery of subject material, basic concepts of cell biology are reviewed prior to presenting more involved topics.

Topics covered in this program include: The Prokaryotic and Eukaryotic Cell; Genetic Material within a Eukaryotic Cell including Chromosomes, Karyotype, Homologous Chromosomes, Sex Chromosomes, and Autosomes; Eukaryotic Cell Division; Asexual versus Sexual Reproduction; Sexual Reproduction including Fertilization, Zygote, Meiosis, Diploid (2n), and Haploid (n); Meiosis I, Meiosis II; Nondisjunction; Spermatogenesis; and Oogenesis.

Presentation
The Presentation portion of this program includes audio-narrated scenes featuring the content from the objectives.

Interactive Lessons
Students can work through different activities that directly reinforce the information learned in the Presentation.

Program Objectives

I. Introduction

A. Introduction to Heredity, Genes, Traits and DNA

B. DNA is Essential for Life

II. The Search for Heredity

A. Ancient Beliefs

B. Gregor Mendel: The Father of Genetics

III. Discovery of Nucleic Acid

A. Fredrick Meischer and 'Nuclein'

B. Nucleic Acids: DNA and RNA

IV. Discovery of Chromosomes

A. Chromosomes Appear Before Mitosis and Meiosis

B. Walter Sutton, Theodore Boveri, and the Chromosomal Theory of Inheritance

1. Thomas Hunt Morgan Found Genes Exist On Chromosomes

C. Chromosomes Consist of Both DNA and Protein

V. DNA Chemical Composition

A. P.A. Levene Identifies DNA Components

1. DNA is Composed of Sugars, Phosphate Groups, and Nitrogenous Bases

2. Pyrimidines: Cytosine and Thymine, and Purines: Adenine and Guanine

3. The Nucleotide

a. Labeling Carbon Atoms Helps Describe How Nucleotides Link Together

B. Is DNA or Protein the Hereditary Molecule?

VI. Experiments Leading to the Discovery of DNA as the Hereditary (Genetic) Molecule

A. Frederick Griffith's Pneumococcus Experiment

1. Unexpected Result

2. The Transfer of Genetic Material — Transformation

B. Avery, MacLeod, & McCarty Cell Extract Experiment

1. Identification of DNA as Hereditary Material

2. Science Remained Skeptical – Protein or DNA?

C. Chargaff Finds the Same Four Nucleotides in All Organisms

1. Chargaff's Rules

D. Hershey and Chase Bacteriophage Experiment

1. Experimental Design

2. DNA Shown to be Genetic Material

VII. Determination of DNA Structure

A. X-ray Diffraction Shows Details of DNA Structure

B. Watson and Crick Correctly Identify DNA Structure

1. The Double Helix: Sugar-Phosphate Backbone and Hydrogen Bonds Between Base Pairs

2. Base Pairing Follows Chargaff's Rules

3. DNA Strands are Antiparallel

a. DNA Structure Suggests How it Could Replicate and Serve as Genes

C. Watson, Crick & Wilkins Receive Nobel Prize

1. Further Studies Confirmed DNA Structure

VIII. Sequences of Nucleotides in DNA Function as Genes

IX. DNA Replication

A. Messelson & Stahl - S emiconservative Replication

B. DNA Replication Process

1. Origins of Replication and Replication Forks

2. Nucleotides are Attached to Elongating Strands

3. Synthesis Occurs in the 5' to 3' Direction

a. Leading Strand , Lagging Strand & Okazaki Fragments

4. Priming Begins Synthesis, and Ligase Connects Fragments to Form Continuous Strands

C. DNA Replication is Rapid and Efficient

1. Errors in DNA Replication can be Repaired

D. DNA Interacts with Histones to Assemble into Chromatin

X. Conclusion

		Designed with these features, or to meet the needs of the listed grade levels.

		Contains some of the listed features, or should be appropriate depending on students skill level.

Institutional Pricing

Please call 1-800-745-4557 to Specify Windows or Mac

Specify Windows or Mac Network, 10 $240.00
Order #: 0991104HYNX

Specify Windows or Mac Network, 30 $540.00
Order #: X0991104HYNZ

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