Biology Now with Physiology (Second Edition)
2nd Edition
ISBN: 9780393631791
Author: Anne Houtman, Megan Scudellari, Cindy Malone
Publisher: W. W. Norton & Company
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Chapter 4, Problem 12TQ
Summary Introduction
The virus are small infectious agents which are most pathogenic to plants, animals and humans. The virus can be seen only through the electron microscope because of its tiny size even less than 1Å unit. Viruses have both non-living and living characteristics and it makes them to classify under a certain phylum of living organisms. Some of the dreadful pathogenic viruses are Human immunodeficiency virus (HIV), Ebola, Varicella zoster that causes disease in humans.
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19. On the diagram below
a. Label the three pictures as: DNA; polypeptide; or RNA.
b. Label the arrows as: translation or transcription/RNA processing.
c. Add the following details to the diagram.
Promoter region
TATA box
Transcription start site
Transcription terminator
Intron (A,B,C,D)
Exons (1,2,3,4,5)
Splice sites
5' cap
5' UTR (untranslated region)
3' poly A tail
3' UTR (untranslated region)
Translational start (AUG)
Translational stop (UGA, UAG, or UAA)
N and C ends of polypeptide
0000
Match the letter labels in the figure below to the terms. Some letter
labels are not used.
MNNNNNNIN
M
C
B
A
M
D
F
E
H
K
G
8
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