Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

7. DNA and Chromosome Structure

RNA

Genetics

7. DNA and Chromosome Structure

RNA

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Multiple Choice

True or False:RNA predated DNA as the main genetic material during the early world.

True

False

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Verified step by step guidance

Understand the context of the problem: The question is about the evolutionary history of genetic material, specifically whether RNA existed before DNA as the main genetic material.

Explore the concept of the 'RNA world hypothesis': This hypothesis suggests that RNA was the first genetic material, capable of storing information and catalyzing chemical reactions, before the evolution of DNA and proteins.

Consider the properties of RNA: RNA is versatile and can act as both genetic material and a catalyst (ribozymes), which supports the idea that it could have been the primary genetic material in early life forms.

Examine the evidence supporting the RNA world hypothesis: Look into scientific studies and findings that suggest RNA's role in early life, such as its ability to self-replicate and its presence in ancient biological processes.

Conclude based on the evidence and hypothesis: Given the RNA world hypothesis and the supporting evidence, determine whether the statement 'RNA predated DNA as the main genetic material during the early world' is true or false.