Ch 31: Praxis Middle School Science: Transcription & Translation Process

About This Chapter

Watch our video lessons about DNA and RNA transcription and translation. They'll guide you through the essentials of these concepts which you will likely encounter on the Praxis Middle School Science exam. Each lesson precedes a self-assessment quiz for your peace of mind.

Praxis Middle School Science: Transcription & Translation Process - Chapter Summary

Learn all you can prior to taking the Praxis Middle School Science exam. Our video lessons have been created by expert instructors to make reviewing the processes of genetic transcription and translation enjoyable and efficient. The lessons are brief and easy to navigate. Ask our instructors any questions that arise as you proceed through the lessons which cover topics like:

  • Protein synthesis
  • Transcription and translation of mRNA (messenger RNA)
  • Repression and induction of transcription
  • Regulation of transcription by operons
  • Splicing of introns and exons
  • Genetic code
  • Ribosomal role in translation

After viewing each video lesson, take the short multiple-choice quiz to gauge your comprehension and retention of the information and gain confidence in your readiness for the Praxis Middle School Science test.

Objectives of the Praxis Middle School Science: Transcription & Translation Process Chapter

The Praxis Middle School Science exam will test your knowledge of science to determine whether you are eligible for certification to teach the subject to middle school students. The topics covered in our chapter on transcription and translation correspond to objectives tested in the life sciences section of the exam, which constitutes about 24% of the score (and includes other topics besides genetics).

Specifically, exam objectives publicized as fair game mention basic genetics, including understanding the processes of replication, transcription and translation. The Praxis test is computer-based with 125 total questions.

8 Lessons in Chapter 31: Praxis Middle School Science: Transcription & Translation Process
Test your knowledge with a 30-question chapter practice test
Protein Synthesis in the Cell and the Central Dogma

1. Protein Synthesis in the Cell and the Central Dogma

Learn the story of the central dogma and how it relates to protein synthesis. We'll use a simple analogy to explore the roles of transcription and translation in building protein from the DNA code. In this lesson, we'll also introduce the concept of a gene.

Transcription of Messenger RNA (mRNA) from DNA

2. Transcription of Messenger RNA (mRNA) from DNA

In this lesson, you will gain a thorough understanding of how transcription works. We will investigate how DNA is transcribed into RNA with the help of a promoter and RNA polymerase. Learn the purpose of messenger RNA and explore the three phases of transcription.

Regulation of Gene Expression: Transcriptional Repression and Induction

3. Regulation of Gene Expression: Transcriptional Repression and Induction

Do our genes work the same way all the time? How do we regulate the expression of our genes? Explore the various ways organisms control gene transcription through repression and induction of operons.

How An Operon Controls Transcription in a Prokaryotic Cell

4. How An Operon Controls Transcription in a Prokaryotic Cell

Is gene regulation really as simple as flipping a switch? What are the parts of an operon, and how do they function to control gene transcription? We'll study the lac operon to answer these questions.

RNA Processing in a Eukaryotic Cell: Splicing of Introns & Exons

5. RNA Processing in a Eukaryotic Cell: Splicing of Introns & Exons

In this lesson, we'll explore the unique considerations for gene regulation in the eukaryotic cell. We'll walk through RNA splicing of introns and exons and the addition of the 5' cap and poly(A) tail.

Overview of the Genetic Code

6. Overview of the Genetic Code

Ever wonder how so much genetic material can exist in every cell? In this lesson, we take a look at how the genetic code works, specifically with how codons signal for amino acids.

The Role of Ribosomes and Peptide Bonds in Genetic Translation

7. The Role of Ribosomes and Peptide Bonds in Genetic Translation

Ribosomes play a major role in the process of genetic translation. In this lesson, learn about the structure of ribosomes and how peptide bonds help to create chains of amino acids.

Translation of mRNA to Protein: Initiation, Elongation & Termination Steps

8. Translation of mRNA to Protein: Initiation, Elongation & Termination Steps

Translation, the second part of the central dogma of molecular biology, describes how the genetic code is used to make amino acid chains. In this lesson, explore the mechanics involved in polypeptide synthesis. Learn the three major steps of translation as you watch tRNA, mRNA, and ribosomes go to work.

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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