Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 11, Problem 3EQ
Figure 11.4b shows an autoradiograph of a replicating bacterial chromosome. If you analyzed many replicating chromosomes, what types of information could you learn about the mechanism of
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Shows an autoradiograph of a replicating bacterial chromosome. If you analyzed many replicating chromosomes, what types of information could you learn about the mechanism of DNA replication?
What would the chromosome on the picture below look like after DNA replication?
In the diagram of replication shown here, fill in the blanks with the appropriate terms: (a) base pair, (b) base, (c) nucleotide, (d) template strand, (e) newly synthesized strand, (f) separating strands.
Chapter 11 Solutions
Genetics: Analysis and Principles
Ch. 11.1 - 1. The complementarity of DNA strands is based on...Ch. 11.1 - 2. To make a new DNA strand, which of the...Ch. 11.1 - 3. The model that correctly describes the process...Ch. 11.2 - 1. A site in a chromosome where DNA replication...Ch. 11.2 - The origin of replication in E. coli contains a....Ch. 11.3 - 1. The enzyme known as ______ uses ________ and...Ch. 11.3 - In the lagging strand, DNA is made in the...Ch. 11.4 - 1. DNA polymerase III is a processive enzyme,...Ch. 11.4 - 2. The proofreading function of DNA polymerase...Ch. 11.5 - 1. In eukaryotes, DNA replication is initiated at...
Ch. 11.5 - 2. Which of the following statements regarding DNA...Ch. 11.5 - 3. In eukaryotes, RNA primers are primarily...Ch. 11.5 - 4. To synthesize DNA, what does telomerase use as...Ch. 11 - What key structural features of the DNA molecule...Ch. 11 - 2. With regard to DNA replication, define the term...Ch. 11 - Which of the following statements is not true?...Ch. 11 - The compound known as nitrous acid is a reactive...Ch. 11 - One way that bacterial cells regulate DNA...Ch. 11 - 6. The chromosome of E. coli contains 4.6 million...Ch. 11 - Here are two strands of DNA. DNA polymerase The...Ch. 11 - A DNA strand has the following sequence:...Ch. 11 - 9. List and briefly describe the three types of...Ch. 11 - 10. As shown in Figure 11.5, five DnaA boxes are...Ch. 11 - 11. Obtain two strings of different colors (e.g.,...Ch. 11 - Sometimes DNA polymerase makes a mistake, and the...Ch. 11 - 13. A short genetic sequence, which may be...Ch. 11 - Single-strand binding proteins keep the two...Ch. 11 - 15. In the following drawing, the top strand is...Ch. 11 - Describe the three important functions of DnaA...Ch. 11 - 17. Draw a picture that illustrates how DNA...Ch. 11 - What is an Okazaki fragment? In which strand of...Ch. 11 - Discuss the similarities and differences in the...Ch. 11 - 20. Explain the proofreading function of DNA...Ch. 11 - 21. What is a processive enzyme? Explain why...Ch. 11 - 22. What enzymatic features of DNA polymerase...Ch. 11 - 23. As shown in Figure 11.24, telomerase attaches...Ch. 11 - If a eukaryotic chromosome has 25 origins of...Ch. 11 - Prob. 25CONQCh. 11 - A diagram of a linear chromosome is shown here....Ch. 11 - As discussed in Chapter 18, some viruses contain...Ch. 11 - 28. Telomeres contain a 3′ overhang region, as...Ch. 11 - 1. Answer the following questions pertaining to...Ch. 11 - An absentminded researcher follows the steps of...Ch. 11 - Figure 11.4b shows an autoradiograph of a...Ch. 11 - 4. As described in Table 11.3, what is the...Ch. 11 - The technique of dideoxy sequencing of DNA is...Ch. 11 - 6. Another technique described in Chapter 21 is...Ch. 11 - The complementarity of its two strands is the...Ch. 11 - Compare and contrast DNA replication in bacteria...Ch. 11 - 3. DNA replication is fast, virtually error-free,...
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- A diagram of a linear chromosome is shown here. The end of each strand is labeled with A, B, C, or D. Which ends could not be replicated by DNA polymerase? Why not? 5′–A———————————————————B–3′ 3′–C———————————————————D–5′arrow_forwardA researcher would like to introduce a foreign gene to bacteria and inserts the gene sequence into a circular DNA fragment. He was surprised to find out that the bacterial colony does not express the gene and realized that he did not introduce an origin of replication to the circular DNA. Although gene was introduced to the bacteria, why did not it express the gene?arrow_forwardWhich of the following is not depicted in the diagram attached? A. Okazaki fragment B. Replication fork C. Leading strand D. Origin of replicationarrow_forward
- Figure 9.10 You isolate a cell strain in which the joining together of Okazaki fragments is impaired and suspect that a mutation has occurred in an enzyme found at the replication fork. Which enzyme is most likely to be mutated?arrow_forwardWhich of the following steps in DNA replication would occur second? 1.DNA molecule separates into two template strands.2.Complimentary nucleotides are added to each template strand.3.DNA molecule unwinds.4.Two DNA molecules, each with a template strand and a new strand, are formed.arrow_forwardAfter 3 rounds of replication, what percent of the DNA molecules will contain only 15N? You take a sample of bacteria with DNA that contains only 14N and allow them to replicate in a medium that contains only 15N. After 3 rounds of replication, what percent of the DNA molecules will contain only 15N? Enter your answer as a whole number without the percent sign. For example, 5% would be entered as 5 and 37% would be entered as 37.arrow_forward
- Define the following words: replication fork, leading strand, lagging strand, Okazaki fragments, helicase, single strand, binding protein, primase, DNA polymerase 3, DNA polymerase 1, dna ligase and nucleasearrow_forwardDoes E. coli chromosomal replication always start at one particular site? What is called? If you were given the DNA sequence of E. coli chromosome, would you be able to identify where E. coli chromosomal replication starts? What is the end of E. coli chromosome replication?arrow_forwardDraw a diagram of DNA replication that has the double-stranded DNA with the replication bubble, has all 6 enzymes, two leading strands including their primers, and demonstrates how the lagging strand is replicated.arrow_forward
- What is the difference between prokaryotic and eukaryotic DNA replication? in 3-4 sentencearrow_forwardA scientist uses a molecule of DNA composed of radioactive nucleotides as a template for replication and transcription in a nonradioactive environment. a) What percentage of individual strands of DNA will be radioactive after three (3) DNA replication cycles? 2. b) What percentage of RNA will be radioactive?arrow_forwardatthew Meselson and Franklin Stahl performed an experiment using heavy isotopes and bacteria to determine which model DNA follows to replicate. Their results are evidence supporting which DNA replication model below? a. The parent DNA molecule is broken into its singular nucleotides from which new nucleotides are copied and then all nucleotides to come back together as one larger DNA molecule. b. The parent DNA strands re-associate after acting as replication templates, forming one molecule of parental DNA and one molecule of daughter DNA. c. The parent DNA is mixed into each of the daughter strands such that both daughter molecules contain a mix of parental and new DNA in each complementary strand. d. The parent DNA strands separate and act as templates for new strands to build onto, such that each resulting molecule is a hybrid of 1 parental strand and 1 daughter strand.arrow_forward
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