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Ch 32: Praxis General Science: Cell Reproduction & Division

About This Chapter

In preparation for the Praxis General Science exam, you can review the different processes, stages and structures involved in cell reproduction and division.

Praxis General Science: Cell Reproduction & Division - Chapter Summary

This chapter will provide you with the opportunity to improve your knowledge about the processes of mitosis, meiosis and cytokinesis, as well as related cellular structures. Each lesson video is taught by one of our expert instructors who will provide you with an in-depth review of:

  • What the genome is
  • Structures and physical features of chromosomes
  • Chromosome condensation and DNA packaging
  • Stages of the cell cycle
  • Cytokinesis, and the difference between mitosis and meiosis
  • Difference between asexual and sexual reproduction
  • Aneuploidy vs. nondisjunction
  • Uses, origins and properties of embryonic and adult stem cells

If you are feeling tight on time and don't think you have the time sit at your computer and watch these lessons, watch them on your mobile device whenever you have a spare moment. To further improve your understanding of the lessons in this chapter, read the lessons transcripts. If at any time during this chapter you have a questions regarding one of the topics covered in this chapter, be sure to send it to our instructors for clarification via the teacher tabs of the lessons.

11 Lessons in Chapter 32: Praxis General Science: Cell Reproduction & Division
Test your knowledge with a 30-question chapter practice test
Basic Genetics: The Genome & Chromosomes

1. Basic Genetics: The Genome & Chromosomes

There are approximately 3 billion bases in the human genome. In this lesson, you'll learn more about the genome and its organization into chromosomes. We think about DNA often as the blueprint for life, but we can also think of it as the recipe for life with the nucleus being the library.

Chromosomes: Structure & Physical Features

2. Chromosomes: Structure & Physical Features

You've probably heard about chromosomes before, but how much do you truly know about them? This lesson will discuss their structure and features and will go over all of the vocabulary you need to know to be a chromosome expert!

How is DNA Packaged? - Chromosome Condensation & Karyograms

3. How is DNA Packaged? - Chromosome Condensation & Karyograms

Learn how DNA packaging makes it possible to fit approximately seven feet of DNA inside a single cell. You'll see how chromosome condensation helps cells get ready for cell division.

The Cell Cycle: Definition, Phases & Sequence

4. The Cell Cycle: Definition, Phases & Sequence

Learn about the dividing and non-dividing states of the cell and discover the different phases of the cell cycle, including interphase, cytokinesis, and the stages of cell division.

What is Mitosis? - Definition, Stages & Function

5. What is Mitosis? - Definition, Stages & Function

Every day your body cells are dividing using a process called mitosis. This allows you to grow and replace damaged or worn out cells. Learn about the stages of mitosis: prophase, metaphase, anaphase and telophase.

Cytokinesis: Animal Versus Plant Cells

6. Cytokinesis: Animal Versus Plant Cells

What's a cell to do when it must divide in two? We'll explore cytokinesis and see how the process can differ in important ways when it comes to plant versus animal cells.

Asexual vs. Sexual Reproduction: Comparison & Characteristics

7. Asexual vs. Sexual Reproduction: Comparison & Characteristics

Did you know that some organisms can reproduce without a mate? Check out this video lesson on asexual versus sexual reproduction to discover the different ways organisms can reproduce and the main differences between mitosis and meiosis.

Meiosis: Comparison to Mitosis, Crossing Over & Process

8. Meiosis: Comparison to Mitosis, Crossing Over & Process

Welcome to meiosis, a realm of division doubled for reproduction untroubled. You'll get a preview of both divisions of meiosis and see what it takes to go from a diploid cell to a haploid gamete.

What is Meiosis? - Steps & Results

9. What is Meiosis? - Steps & Results

It's meiosis that gives us the male and female reproductive cells known as the egg and sperm. In meiosis, two cell divisions take place, which produces four genetically unique cells with half the number of chromosomes as the parent cell.

Nondisjunction & Aneuploidy: Definition & Examples

10. Nondisjunction & Aneuploidy: Definition & Examples

Learn why proper chromosome segregation is essential during meiosis. We'll see how having an extra chromosome can lead to Down Syndrome and also examine the consequences of having too few chromosomes. Disruptions to the delicate balance of cell division can have far-reaching effects.

Embryonic and Adult Stem Cells: Uses, Origins & Properties

11. Embryonic and Adult Stem Cells: Uses, Origins & Properties

How can we grow a brand new windpipe? Or a heart? In this lesson, we'll learn about embryonic and adult stem cells and how scientists are using them to give people a new lease on life.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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