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1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

4. DNA, Chromosomes, and Genomes

DNA vs. RNA

Cell Biology

4. DNA, Chromosomes, and Genomes

DNA vs. RNA

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Multiple Choice

Which of the following differences between RNA and DNA is not true?

RNA has Uracil, DNA has Thymine

RNA is single stranded, DNA is double stranded

RNA can act as an enzyme, DNA cannot act as an enzyme

RNA contains the base cytosine, DNA contains the base Uracil

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Verified step by step guidance

Identify the structural differences between RNA and DNA: RNA contains the base uracil (U) instead of thymine (T), which is found in DNA.

Understand the structural form: RNA is typically single-stranded, whereas DNA is double-stranded, forming a double helix.

Recognize the functional capabilities: RNA can have catalytic functions and act as an enzyme (ribozymes), while DNA does not have this capability.

Examine the bases present in both nucleic acids: Both RNA and DNA contain the base cytosine (C), but DNA contains thymine (T) and RNA contains uracil (U).

Evaluate the given statements: The statement 'RNA contains the base cytosine, DNA contains the base Uracil' is incorrect because DNA contains thymine, not uracil.