Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

5 Questions

0 Views

The RNA World Hypothesis

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary composition of the ribosome, one of the most critical components of cells?

RNA (correct)

DNA

Proteins

Lipids

Who proposed the concept of the RNA world?

Alexander Rich (correct)

Walter Gilbert

Both Alexander Rich and Walter Gilbert

No one proposed the concept of the RNA world

What is the RNA world?

A stage in the evolutionary history of life on Earth where all four RNA building blocks were formed concurrently

A stage in the evolutionary history of life on Earth where self-replicating RNA molecules proliferated before the evolution of DNA and proteins (correct)

A stage in the evolutionary history of life on Earth where RNA enzymes (ribozymes) catalyzed chemical reactions critical for life

A stage in the evolutionary history of life on Earth where DNA and proteins proliferated before the evolution of RNA molecules

What may be surviving remnants of covalently bound coenzymes in an RNA world?

<p>Ribonucleotide moieties in many coenzymes</p> Signup and view all the answers

What ability did some ancient RNAs evolve to protect other RNAs?

<p>Methylate other RNAs</p> Signup and view all the answers

The RNA World Hypothesis

Choose a study mode

Podcast

Questions and Answers

What is the primary composition of the ribosome, one of the most critical components of cells?

Who proposed the concept of the RNA world?

What is the RNA world?

What may be surviving remnants of covalently bound coenzymes in an RNA world?

What ability did some ancient RNAs evolve to protect other RNAs?

More Like This

RNA World: Structure, Replication, and Function Quiz

RNA-Welt-Hypothese

RNA World Hypothesis Overview

Biology: The Origin and Evolution of Cells

Upgrade to continue