Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 12, Problem 14PDQ
How many base pairs are in a molecule of phage T2 DNA 52 μm long?
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Chapter 12 Solutions
Concepts of Genetics (12th Edition)
Ch. 12 - In bacteriophages and bacteria, the DNA is almost...Ch. 12 - After salivary gland cells from Drosophila are...Ch. 12 - If a human nucleus is 10 m in diameter, and it...Ch. 12 - Roberts syndrome is a rare inherited disorder...Ch. 12 - Prob. 2CSCh. 12 - Roberts syndrome is a rare inherited disorder...Ch. 12 - HOW DO WE KNOW? In this chapter, we focused on how...Ch. 12 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 12 - Contrast the size of the single chromosome in...Ch. 12 - Describe the structure of giant polytene...
Ch. 12 - What genetic process is occurring in a puff of a...Ch. 12 - During what genetic process are lampbrush...Ch. 12 - Why might we predict that the organization of...Ch. 12 - Describe the sequence of research findings that...Ch. 12 - Describe the molecular composition and arrangement...Ch. 12 - Describe the transitions that occur as nucleosomes...Ch. 12 - Provide a comprehensive definition of...Ch. 12 - Mammals contain a diploid genome consisting of at...Ch. 12 - Assume that a viral DNA molecule is a 50-m-long...Ch. 12 - How many base pairs are in a molecule of phage T2...Ch. 12 - Examples of histone modifications are acetylation...Ch. 12 - Contrast the structure of SINE and LINE DNA...Ch. 12 - Variable number tandem repeats (VNTRs) are...Ch. 12 - It has been shown that infectious agents such as...Ch. 12 - Cancer can be defined as an abnormal proliferation...Ch. 12 - In a study of Drosophila, two normally active...Ch. 12 - Prob. 21ESPCh. 12 - An article entitled Nucleosome Positioning at the...Ch. 12 - Prob. 23ESPCh. 12 - Following is a diagram of the general structure of...Ch. 12 - Microsatellites are currently exploited as markers...Ch. 12 - At the end of the short arm of human chromosome 16...
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- Why is yeast used as a source of RNA? Explain in 1-3 sentencesarrow_forwardThe transfection reagent used to introduce plasmids to the HEK293 cells was a lipid reagent. Why is lipid utilized for this procedure?arrow_forwardIn bacteriophages and bacteria, the DNA is almost always organized into circular (closed loops) chromosomes. Phage l is an exception, maintaining its DNA in a linear chromosome within the viral particle. However, as soon as this DNA is injected into a host cell, it circularizes before replication begins. What advantage exists in replicating circular DNA molecules compared to linear molecules, characteristic of eukaryotic chromosomes?arrow_forward
- What is a plasmid?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_forwardTranscribe and translate the following DNA sequence (nontemplate strand): 5'- ATGGCCGGTTATTAAGCA-3'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_forwardwhat’s a plasmid?arrow_forwardDeamination of cytosine to form uracil can happen spontaneously during replication. It can be repaired relatively easily by photoreactivation repair using DNA polymerase I b) base excision repair using DNA glycosylase creating an AP site c) base excision repair using topoisomerase creating an AP site d) none of thesearrow_forward
- A plasmid comprised of B-DNA changed its linking number from 420 to 457, resulting in a superhelix density of 0.031. What is the length of the plasmid in base pairs? 15050 11200 3500 12532 8765arrow_forwardCalculate the linking number “L” for a 210 base pair closed circular plasmid with 4 negative supercoils. Assume the DNA remains entirely B-form. A) 10 B) 16 C) 24 D) -10 E) -4 Please solve and why is it B? Need answer in short and asap .arrow_forwardSupercoiled DNA is slightly unwound compared to relaxed DNA and this enables it to assume a more compact structure with enhanced physical stability. Describe the enzymes that control the number of supercoils present in the E. coli chromosome. How much would you have to reduce the linking number to increase the number of supercoils by five?arrow_forward
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