To draw: Diagrams to contrast neuroendocrine signaling with classical endocrine signaling. Introduction: The endocrine system is the chemical signaling system that uses blood vessels as information channels. The endocrine glands are ductless organs located within the organ systems and contain groups of endocrine cells that secrete their hormones directly into their surroundings. The endocrine signaling is of four types, namely classical signaling, neuroendocrine signaling, autocrine signaling, and paracrine signaling.

Question

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)

Answer 1

Question

Chapter 49.2, Problem 1C

Summary Introduction

To draw: Diagrams to contrast neuroendocrine signaling with classical endocrine signaling.

Introduction: The endocrine system is the chemical signaling system that uses blood vessels as information channels. The endocrine glands are ductless organs located within the organ systems and contain groups of endocrine cells that secrete their hormones directly into their surroundings. The endocrine signaling is of four types, namely classical signaling, neuroendocrine signaling, autocrine signaling, and paracrine signaling.

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