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Ch 11: TASC Science: Variation of Traits

About This Chapter

Recall information about the many variations within traits as you view the lessons from this chapter. Find out how to provide smart answers on the TASC Science assessment as you go through the chapter videos and transcripts.

TASC Science: Variation of Traits - Chapter Summary

Let our chapter materials help you think back to your courses about genetics and trait variation as you prepare for the TASC Science assessment. After you watch each of the video lessons and read through the transcripts, you should be more comfortable answering questions about the following topics:

  • Mutagens and DNA damage
  • Random mutation
  • Meiosis
  • RNA translation and the genetic code
  • The relationship between the environment and mutation rates

While brushing up on information about genetic variation, you can gauge how much you remember about this topic by answering the questions on the lesson quizzes. Your scores on these quizzes may help you determine how much you do or don't remember about this specific topic. Of course, if you already know you need to go back over this material, you can simply watch each lesson within the chapter. We make our lessons short so that you remain fully engaged as well as to fit your busy schedule. Remember that as you get ready for the TASC Science assessment that you can take our study materials anywhere you go, since our site is mobile friendly.

TASC Science: Variation of Traits Objectives

The TASC Science assessment determines whether someone has gained a full scope of scientific knowledge across all the major subcategories. However, there are stipulations about who can take this test, since the test is designed as a high school equivalency test for people who have not graduated from high school and who are not currently enrolled.

The designers of the tests have taken into account the Next Generation Science Standards (NGSS), and thus the questions use a multidisciplinary style approach, combining science with related disciplines, such as engineering. Under this multidisciplinary structure, you will be asked questions within three main areas, including space and Earth sciences, life sciences, and physical sciences. Your knowledge about the variation of traits may be addressed in questions within the life sciences area, and this content area makes up about 36% of the test.

5 Lessons in Chapter 11: TASC Science: Variation of Traits
Test your knowledge with a 30-question chapter practice test
What Is the Genetic Code That Translates RNA Into Amino Acids?

1. What Is the Genetic Code That Translates RNA Into Amino Acids?

How is RNA translated into a series of amino acids? Learn the language of the genetic code, explore a codon dictionary, and discover some basics of genetics in this lesson on translation.

Meiosis: Comparison to Mitosis, Crossing Over & Process

2. 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.

Genetic Variability and Random Mutation

3. Genetic Variability and Random Mutation

Evolution is driven by variation among populations. The amount of variability determines how well a population can adapt to environmental changes, while random mutations can provide new variations that help a population adapt to unexpected changes.

Mutagens: How the Environment Affects Mutation Rates

4. Mutagens: How the Environment Affects Mutation Rates

What causes mutations to occur in living things? How do we avoid mutations? Are mutations always bad? Discover answers to these questions and more in this lesson on mutagens.

Causes of Mutation and DNA Damage- Mutagens

5. Causes of Mutation and DNA Damage- Mutagens

Mutations, or changes in DNA sequences, are incredibly important in biology, from evolution and diversity to cancer and genetic diseases. But how do mutations happen? In this lesson, you'll learn about mutagens, which are chemicals that can cause mutations.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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