Essentials of Genetics (9th Edition) - Standalone book
9th Edition
ISBN: 9780134047799
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 11, Problem 17PDQ
Summary Introduction
To review:
The number of base pairs (bp) present in 52 µm (micrometer) long phage T2 DNA (deoxyribonucleic acid).
Introduction:
Enterobacteria phage T2 is a bacteriophage that infects and kills Escherichia coli. It is a “tailed phage”. The viral particles consist of a head, collar, tail, and tail fibers. Its genome consists of linear double-stranded DNA with repetitive ends. The DNA is made up of
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How many base pairs are in a molecule of phage T2 DNA 52 mm long?
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Chapter 11 Solutions
Essentials of Genetics (9th Edition) - Standalone book
Ch. 11 - CASE STUDY | Art inspires learning A genetics...Ch. 11 - Prob. 2CSCh. 11 - Prob. 3CSCh. 11 -
HOW DO WE KNOW?
1. In this chapter, we focused on...Ch. 11 - Review the Chapter Concepts list on p. 199. These...Ch. 11 - Prob. 3PDQCh. 11 - Describe how giant polytene chromosomes are...Ch. 11 - What genetic process is occurring in a puff of a...Ch. 11 - Prob. 6PDQCh. 11 - Why might we predict that the organization of...
Ch. 11 -
8. Describe the sequence of research findings...Ch. 11 - Prob. 9PDQCh. 11 - Prob. 10PDQCh. 11 - Provide a comprehensive definition of...Ch. 11 - Prob. 12PDQCh. 11 - Define satellite DNA. Describe where it is found...Ch. 11 - Prob. 14PDQCh. 11 -
15. Mammals contain a diploid genome consisting...Ch. 11 - Prob. 16PDQCh. 11 - Prob. 17PDQCh. 11 - Prob. 18PDQCh. 11 - Prob. 19PDQCh. 11 - The human genome contains approximately 106 copies...Ch. 11 - Prob. 21PDQ
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- A Plasmid is 3.6kb large. It is digested with an enzyme that has restriction sites at 1,152 and 2,954. How many fragments do we have and what are their sizes?arrow_forwarda) A plasmid DNA in bacteria has a length of 14,000 bp and an Lk of 1300. Calculate the superhelical density o for this plasmid. Show your work for partial credit, round to one digit after the decimal point. b) You use a Type II topoisomerase to change the linking number of this plasmid to 1310. How many turnovers must the topoisomerase perform? Is this resulting plasmid underwound or overwound?arrow_forwardAre they true or false? a)If someone reads an absorbance of 0,25 at 260 nm, the concentration of the dsDNA is 25 ug/ml. b)If someone reads an absorbance of 0,25 at 260 nm, the concentration of the dsDNA is 25 ug/ml c)The copy number refers to the number of molecules of an individual plasmid that are normally found in a single bacterial cell. d)The amount of mRNA level can be determined via competitor RT-PCR in which two different sized products can be obtained, one of which is a known standard.arrow_forward
- what’s a plasmid?arrow_forwardIn the Hershey Chase experiment, why was the localization of radio-labeled phage of macromolecules in the cytoplasm the reason that the genetic material identity was proved.arrow_forwardWhat is true regarding the following cross between bacterial strains: F’ x F-? As the donor, F' will donate only the F plasmid to F- As the donor, F- will donate the F plasmid only to F' As the donor, F- will donate the F plasmid and a portion of the bacterial chromosome to F' As the donor, F' will donate the F plasmid and a portion of the bacterial chromosome to F-arrow_forward
- General recombination occurs in bacteria where it is involved in several types of intermicrobial DNA transfer. What are these types of transfer, and by what mechanisms do they occur?arrow_forwardIn Hershey-Chase experiment, bacteriophages protein coats were tagged with radioactive isotope S-32. These phages were used to infect E. coli cells and the cells were further centrifuged to form pellets. Why was the radioactivity level of S-32 found greater outside the cells compared to the E. coli cell pellets? Explain briefly. If the experiment is repeated in the same manner but this time the phage protein coats are labelled with isotope X and the phage DNA with isotope Y, which isotope’s radioactivity will be found in greater amounts in the E. coli cell pellets after centrifugation? Explain briefly.arrow_forwardWhy is yeast used as a source of RNA? Explain in 1-3 sentencesarrow_forward
- "what is the reason for forming mucoid colonies in some types of bacteria?"arrow_forwardWhat is the advantage for bacteria to have a circular DNA chromosome when eukaryotes have linear DNA chromosomes?arrow_forwardWhat is the purpose to have hundreds of DNA double strand breaks (DSBs) created by SPO11?arrow_forward
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