EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Chapter 21, Problem 7RQ
Summary Introduction
To describe: The three steps of translation.
Introduction: The process where the codons in the mRNA are translated with the help of ribosomes and tRNA to synthesize amino acid sequence is called protein synthesis; the amino acids are linked by a peptide bond to make the polypeptide chain that constitutes the proteins.
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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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the specific reason for use
the alleged results on improving performance
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how it affect homeostasis and improves performance
any side-effects of this substance
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