BROOKER BIOLOGY
5th Edition
ISBN: 9781307656152
Author: BROOKER
Publisher: MCG/CREATE
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Chapter 28.3, Problem 2EQ
Summary Introduction
To explain: The reason that boiling in concentrated acid is a reasonable way to investigate the presence of biological materials that may resist decay long enough to form fossils.
Introduction: Cladophora is a species of green algae. It has the capacity to perform photosynthesis. This green alga is generally found near aquatic areas such as the ocean. A unique feature is observed in this alga that is it is not attacked by microbes. It is protected by the microbial attack. The scientist worked to discover the reason that Cladophora is resistant to microbial attack.
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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
The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe:
a) What molecule do you recommend for the trial. Why?
b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?
3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale.
4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale.
Mutation 1
Mutation 2
Chapter 28 Solutions
BROOKER BIOLOGY
Ch. 28.1 - An Introduction to Protists Core Skill:...Ch. 28.2 - Prob. 1CCCh. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Prob. 4CCCh. 28.2 - Prob. 5CCCh. 28.3 - Prob. 1EQCh. 28.3 - Prob. 2EQCh. 28.4 - Prob. 1CCCh. 28.4 - Prob. 2CC
Ch. 28.4 - Core Skill: Modeling The goal of this modeling...Ch. 28 - Prob. 1TYCh. 28 - Prob. 2TYCh. 28 - Prob. 3TYCh. 28 - Prob. 4TYCh. 28 - What organisms have tertiary plastids? a. certain...Ch. 28 - What is surprising about mixotrophs? a. They have...Ch. 28 - What advantages do diatoms obtain from sexual...Ch. 28 - What are extrusomes? a. hairs on flagella b....Ch. 28 - Prob. 9TYCh. 28 - Prob. 10TYCh. 28 - Prob. 1CQCh. 28 - Why have molecular biologists sequenced the...Ch. 28 - Core Concept: Science and Society Why are the...Ch. 28 - Prob. 1COQCh. 28 - Prob. 2COQ
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- Below is a diagram from a genomic locus of a bacterial genome. Each arrow represents a coding region, and the arrowheads indicate its orientation in the genome. The numbers are randomly assigned. Draw the following features on the diagram, and explain your rationale for each feature: 10 12 合會會會會長 6 a) Expected transcriptions, based on known properties of bacterial genes and operons. How many proteins are encoded in each of the transcripts? b) Location of promoters (include rationale) c) Location of transcriptional terminators (include rationale) d) Locations of Shine-Dalgarno sequences (include rationale)arrow_forwardSample excuse letter in school class for the reasons of headaches and dysmenorrhea caused by menstrual cyclearrow_forwardHow do the muscles on the foot work to balance on an ice skate, specifically the triangle of balance and how does it change when balancing on an ice skate? (Refer to anatomy, be specific)arrow_forward
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