CAMPBELL BIOLOGY-MASTERING BIO.ACCESS
12th Edition
ISBN: 9780136486787
Author: Urry
Publisher: SAVVAS L
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Chapter 27.2, Problem 2CC
Distinguish between the three mechanisms by which bac- teria can transfer DNA from one bacterial cell to another.
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a) Draw a DNA replication fork and label the polarity of your DNA (you decide which strand is 3’à5’ and 5’à3) and label the leading and lagging strand. Depict the helicase, topoisomerase, and SSBPs doing their jobs in early DNA replication as well as a primase on each strand laying down an RNA primer.
b) Describe the main jobs of each of the following enzymes in the coli model of replication:
DNA Polymerase I
2. DNA Polymerase II
3. DNA Polymerase III
a) Use the codon chart to translate the following mRNA codons into amino acids: AUG GUU AAC CAG UGA
b) How do mRNA and rRNA interact?
c) How do mRNA and tRNA interact?
a. Describe the replisome
b. What is the “end problem of linear chromosomes” and what enzymeis used by some cells get around this issue?
c. Draw the rough shape of the sliding clamp. What is the point of this protein?
Chapter 27 Solutions
CAMPBELL BIOLOGY-MASTERING BIO.ACCESS
Ch. 27.1 - Describe two adaptations that enable prokaryotes...Ch. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...Ch. 27.4 - Explain how molecular systematics and metagenomics...
Ch. 27.4 - Prob. 2CCCh. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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