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Ch 5: Genetic Variation, Control & Reproduction

About This Chapter

Watch video lessons to refresh your understanding of reproduction, genetic variation and genetic control. Study genomics and the types of reproduction as well as the uses of DNA technology and stem cells.

Genetic Variation, Control & Reproduction - Chapter Summary

This chapter's video lessons focus on major concepts and terms related to reproduction, genetic variation and control. You'll review sexual and asexual reproduction and you may learn something new about DNA technology and cloning. You will also study animal development and the purpose of model organisms. After finishing the lessons, you should be able to:

  • Differentiate between sexual and asexual reproduction
  • Understand the process of early vertebrate development
  • Describe plants' alternation of generations cycle
  • Recognize the effect of crossing over events on chromosomal linkage
  • Explain why scientists use model organisms in genetics
  • Describe how DNA is cloned
  • Discuss how genomes are studied
  • Address the practical applications of and concerns about DNA technology
  • Identify the properties and uses of stem cells

Our professional instructors keep you engaged as you learn about genetics and reproduction from our short video lessons. After watching the videos in their entirety, you can use the timeline to rewatch major points. In addition, our lessons include transcripts that highlight key terms. Assess your comprehension of the covered topics by taking the multiple-choice lesson quizzes.

11 Lessons in Chapter 5: Genetic Variation, Control & Reproduction
Test your knowledge with a 30-question chapter practice test
Sexual Reproduction: Inheriting Genes from Each Parent

1. Sexual Reproduction: Inheriting Genes from Each Parent

Organisms reproduce in order to make offspring. With sexual reproduction the offspring get a combination of the genetic material from two parents. Learn how the male and female reproductive cells, called gametes, come together during fertilization.

Asexual vs. Sexual Reproduction: Comparison & Characteristics

2. 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.

Overview of Animal Reproduction and Development

3. Overview of Animal Reproduction and Development

At this stage in life, you likely know where babies come from. However, did you know that some animals can make clones of themselves and reproduce sexually too? In this lesson, you'll learn more about sexual reproduction and early vertebrate development.

Alternation of Generations: The Gametophyte and Sporophyte

4. Alternation of Generations: The Gametophyte and Sporophyte

Even though many plants seem simple, they often have very complex life cycles. We will look at how plants alternate between different life stages as well as the terms used to describe these unique points in their life cycle.

Crossing Over & Gene Linkage: Definition, Importance & Results

5. Crossing Over & Gene Linkage: Definition, Importance & Results

During this latest development of his flying hamster experiments, Adrian must learn about linked genes and recombinant chromosomes to unlock the mystery of the fire-breathing hamster. In this lesson, you'll look at another exception to Mendel's law of independent assortment.

Human Genetics: Multifactorial Traits & Model Organisms

6. Human Genetics: Multifactorial Traits & Model Organisms

How do we study human genetics when most traits arise from multiple genes? It's certainly more complicated that drawing a simple Punnett square. Never fear, for model organisms are here!

DNA Cloning: Definition and Process

7. DNA Cloning: Definition and Process

DNA cloning is used for a variety of purposes, but how does it work? In this video lesson, you will learn about the process of cloning DNA, as well as see examples of how cloning is used in science, medicine, and consumer products.

Genomic DNA Analysis

8. Genomic DNA Analysis

Your genes are what make you who you are, but they also make you a human. Studying genes and genomes allows scientists to better understand not only our own species, but how we are related to other species in the world as well.

Practical Applications of DNA Technology

9. Practical Applications of DNA Technology

DNA technology is a field that has many applications for our everyday lives. In this video lesson, you will learn about some of the important contributions of DNA technology to industries such as medicine, agriculture and criminal investigation.

Ethical and Safety Concerns for DNA Technology

10. Ethical and Safety Concerns for DNA Technology

DNA technology is very powerful and has had positive influences on many fields and industries. However, DNA technology is not perfect. In this lesson, you will explore some of the safety and ethical concerns that people have regarding this field of study.

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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