To predict: The reason why biologists modify the tree showing the major forms of life. Concept introduction: Tree of life shows the evolutionary relationship between organisms, the common ancestors, and the common traits shared by organisms. The tree of life is not fixed and is often changed by scientists.

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Transcription and Translation 1. What is the main function of transcription and translation? (2 marks) 2. How is transcription different in eukaryotic and prokaryotic cells? (2 marks) 3. Explain the difference between pre-mRNA and post-transcript mRNA. (2 marks) 4. What is the function of the following: (4 marks) i. the cap ii. spliceosome iii. Poly A tail iv. termination sequence 5. What are advantages to the wobble feature of the genetic code? (2 marks) 6. Explain the difference between the: (3 marks) i. A site & P site ii. codon & anticodon iii. gene expression and gene regulation 7. Explain how the stop codon allows for termination. (1 mark) 8. In your own words, summarize the process of translation. (2 marks)

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Chapter 1.6, Problem 2C

Summary Introduction

To predict: The reason why biologists modify the tree showing the major forms of life.

Concept introduction: Tree of life shows the evolutionary relationship between organisms, the common ancestors, and the common traits shared by organisms. The tree of life is not fixed and is often changed by scientists.

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