Biology: How Life Works - Standalone book
2nd Edition
ISBN: 9781464126093
Author: James Morris, Daniel Hartl, Andrew Knoll, Robert Lue, Melissa Michael, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: W. H. Freeman
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Chapter 23, Problem 4QC
Summary Introduction
To determine:
How to integrate a new fossil species into the phylogenetic tree.
Introduction:
Phylogeny is the evolutionary history or relationship between organisms and groups of organisms. Phylogeny explains the relationship of organisms such as from which organisms, it has been evolved and the most closely related species to that organism and so on. Phylogenic tree is the tree of life as it provides information about the evolution of different organisms and relationships among different organisms. The evolutionary journey of a group of organisms or species is constructed under a phylogenetic tree.
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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)
Chapter 23 Solutions
Biology: How Life Works - Standalone book
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Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License