Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart2h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Introduction to Transcription

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Transcription

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Multiple Choice

Transcription is sometimes described as a process in which RNA is "copied" from the template strand of DNA. This statement is potentially misleading since _____.

The nucleotides in RNA contain ribose and cannot be an exact copy of DNA.

RNA molecules contain uracil instead of thymine and cannot be an exact copy of DNA.

The RNA transcript has a sequence complementary to the template.

The RNA transcript and the DNA template strand are antiparallel.

All of the above.

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Verified step by step guidance

Understand the process of transcription: Transcription is the synthesis of RNA from a DNA template. It involves the enzyme RNA polymerase, which reads the DNA template strand and synthesizes a complementary RNA strand.

Consider the chemical differences between DNA and RNA: DNA contains deoxyribose sugar, while RNA contains ribose sugar. This difference means RNA cannot be an exact copy of DNA.

Examine the nucleotide differences: DNA uses thymine (T), whereas RNA uses uracil (U). Therefore, when RNA is synthesized, uracil is incorporated instead of thymine, making it not an exact copy.

Analyze the sequence relationship: The RNA transcript is complementary to the DNA template strand, meaning the bases pair according to the rules (A-U, T-A, C-G, G-C), resulting in a sequence that is not identical but complementary.

Consider the orientation of strands: The RNA transcript and the DNA template strand are antiparallel, meaning they run in opposite directions (5' to 3' for RNA and 3' to 5' for the DNA template), further indicating that RNA is not an exact copy.