EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
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Chapter 25, Problem 2SQ
Summary Introduction
Introduction: Stratosphere is one among the layers of the Earth’s atmosphere. It is the second layer of the atmosphere. The troposphere is the lowest layer of atmosphere and is present just below the stratosphere. Mesosphere lies above the stratosphere.
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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)
In this activity you will research performance enhancers that affect the
endocrine system or nervous system. You will submit a 1 page paper on one
performance enhancer of your choice. Be sure to include:
the specific reason for use
the alleged results on improving performance
how it works
how it affect homeostasis and improves performance
any side-effects of this substance
Chapter 25 Solutions
EBK HUMAN BIOLOGY
Ch. 25 - Describe at least two ways that human activities...Ch. 25 - Prob. 2RQCh. 25 - Describe the greenhouse effect. Make a list of...Ch. 25 - Prob. 4RQCh. 25 - Prob. 1SQCh. 25 - Prob. 2SQCh. 25 - Prob. 3SQCh. 25 - Greenhouse gases ________. a. slow the escape of...Ch. 25 - All the following are renewable energy sources...Ch. 25 - Prob. 6SQ
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