GENETICS(LL)-W/CONNECT >CUSTOM<
6th Edition
ISBN: 9781260571561
Author: HARTWELL
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 6P
The enzyme micrococcal nuclease can cleave phosphodiester bonds on single- or double-stranded DNAs, but DNA that is bound to proteins is protected from digestion by micrococcal nuclease. When chromatin from eukaryotic cells is treated for a short period of time with micrococcal nuclease and then the DNA is extracted and analyzed by electrophoresis and ethidium bromide staining, the pattern shown in lane A on the following gel is found. Treatment for a longer time results in the pattern shown in lane B, and treatment for yet more time yields that shown in lane C. Interpret these results.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
During agarose gel electrophoresis, why does DNA move through the gel when electric current is applied?
because DNA is negatively charged
because a charged chemical from the loading buffer is bound to the DNA
because DNA is positively charged
because DNA absorbs electricity
The competency of bacterial cells to take up plasmids from the environment can be enhanced by treating them with calcium chloride. Which of the following statements is true regarding this process?
Question 23 options:
Chloride ions neutralize charges on the phospholipids and DNA.
Chloride ions adhere to the cell membrane and calcium ions to the plasmid DNA, thus increasing the attractive force between them.
The calcium ions change the structure of the cell membrane and, as a result, the pores are enlarged.
Calcium ions neutralize charges on the phospholipids of the bacterial cell membrane and on the DNA of the plasmid.
Chloride ions enter the cell through protein pores in the membrane, carrying plasmid DNA with them.
When chromatin is treated with non-specific nucleases, what is the length of the resulting pieces of DNA
Chapter 12 Solutions
GENETICS(LL)-W/CONNECT >CUSTOM<
Ch. 12 - For each of the terms in the left column, choose...Ch. 12 - Many proteins other than histones are found...Ch. 12 - What difference exists between the compaction of...Ch. 12 - What is the role of the core histones in...Ch. 12 - a. About how many molecules of histone H2A would...Ch. 12 - The enzyme micrococcal nuclease can cleave...Ch. 12 - a. What letters are used to represent the short...Ch. 12 - About 2000 G bands are visible in a...Ch. 12 - Suppose you performed a fluorescence in situ...Ch. 12 - Which of the following would be suggested by a...
Ch. 12 - For each of the following pairs of chromatin...Ch. 12 - a. Drosophila b. Humans Give examples of...Ch. 12 - One histone modification that is seen consistently...Ch. 12 - Recently, scientists constructed a transgene that...Ch. 12 - Drosophila geneticists have isolated many...Ch. 12 - On the following figures, genes A and B are on the...Ch. 12 - Prob. 17PCh. 12 - The first page of this chapter displays photos of...Ch. 12 - The human genome contains about 3 billion base...Ch. 12 - The mitotic cell divisions in the early embryo of...Ch. 12 - In an experiment published in the journal Cell in...Ch. 12 - a. What DNA sequences are found at the telomeres...Ch. 12 - Prob. 23PCh. 12 - a. In a fluorescent in situ hybridization FISH...Ch. 12 - If you are comparing the two telomeres in each...Ch. 12 - a. What DNA sequences are commonly found at human...Ch. 12 - On the graphs presented in Problem 21, no data is...Ch. 12 - Prob. 29PCh. 12 - Prob. 30PCh. 12 - In the 1920s, Barbara McClintock, later a Nobel...Ch. 12 - Give at least one example of a chromosomal...Ch. 12 - Cornelia de Lange syndrome CdLS is a rare human...Ch. 12 - a. Give at least three examples of types of...Ch. 12 - A number of yeast-derived elements were added to...Ch. 12 - Prob. 36PCh. 12 - The completely synthetic yeast chromosome Syn III...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What causes the change in the ability of DNA to absorb UV light when it is denatured? options: In denatured DNA, DNA double helix is disrupted, which causes the exposure of the deoxyribose and thus increases their absorbance of UV light In denatured DNA, DNA double helix is disrupted, which causes the exposure of the phosphate groups and thus increases their absorbance of UV light. In denatured DNA, DNA double helix is disrupted, which causes the exposure of the bases and thus increases their absorbance of UV light. all of the above are correctarrow_forwardEDTA weakens the cell wall by removing ions that help hold it together while glucose prevents premature cell lysis due to osmosis in cells with weakened cell walls. You have made a batch of resuspension solution to isolate plasmid DNA, but you forgot to add EDTA. What do you think will happen when you try to perform a plasmid isolation procedure with this reagent? Why?arrow_forwardChoose the right combination of components required to set up a polymerase chain reaction from the following: Template RNA, two primers, NTPs, and DNA polymerase Template DNA, two primers, dNTPs, and DNA ligase Template DNA, two primers, NTPs, and DNA ligase Template DNA, two primers, dNTPs, and DNA polymerasearrow_forward
- There are 6 parts to this question: This is a follow up to the prior question regarding the replication of the DNA strand below. The DNA strand is here for your reference and you do not need to do anything with or to it. TC GATATCGG AGCTATAGCC c) what enzyme separated the parental DNA template strands, d) what bonds were broken? e) what enzyme replicates DNA f) before DNA can be replicated/copied, what must be laid down to allow the enzyme in "e" to replicated the DNA (be specific)? g) our DNA is replicated in many "pieces", what enzyme connects these many "pieces" into one continuous DNA strand that becomes the sister chromatid? h) during what specific phase of the cell cycle does this DNA replication process occur? (This should be a review question from last topics we covered).arrow_forwardLook at the double-stranded segment of DNA shown below. Imagine that the two strands have already been denatured, and the temperature has been decreased to an appropriate annealing temperature. Show where the two primers would anneal to the strands, then indicate the direction of extension on each new strand with an arrow. 5’--T C A G G A C G T A A G C T T G C A T A T C T C G A T G C T A A A T C A T—3’ 3’--A G T C C T G C A T T C G A A C G T A T A G A G C T A C G A T T T A G T A—5’ Primer #1: 3’ A C G A T T T 5’ Primer #2: 5’ G G A C G T A 3’arrow_forwardWhat is/are the attributes that make nucleotide excision repair (NER) and base excision repair (BER) similar and/or different from each other? Select the correct response: The NER pathway is the only one that can remove DNA lesions in the strand regardless of their size which is followed by attaching the correct strand, then sealed by a DNA ligase. They both use the enzyme DNA glycosylases that recognizes the damaged DNA segments and proceed with repairing the faulty base in the strand. They differ NER only repairs purine bases while BER repairs pyrimidine bases. They both remove the damaged parts of the DNA where the BER pathway corrects only the identified damaged bases which are usually non-bulky lesions. The NER pathway, on the other hand, repairs the damage by removal of bulky DNA adducts which is a short-single stranded DNA segment. They both utilize the enzyme photolyase to reverse the damages created by the faulty section of the DNA. They both remove the damaged parts of the…arrow_forward
- Which of the following statements regarding Nucleotide Excision Repair (NER) and Base Excision Repair (BER) is true? Only NER involves the action of DNA ligase to seal nicks in the DNA backbone. Both NER and BER involve DNA strand cleavage by an endonuclease. Both NER and BER can be activated by exposure to visible light. Only BER requires DNA polymerase. Both NER and BER involve the creation of an apyrimidinic (AP) site.arrow_forwardA plasmid is a DNA double helix in which the ends of each of the strands of nucleotides are attached to each other, forming a circular DNA molecule. 1) True 2) Falsearrow_forwardWhich of the following enzymes can break, and rejoin, phosphodiester bonds during the normal DNA replication process in the chromosomes of E. coli cells? single-stranded binding proteins RNA polymerase topoisomerase DNA helicase DNA ligasearrow_forward
- Match the definition on the left with the term on the right Tightly hypercolled DNA that is not in use Loosely colled DNA that is currently being used a) Chromatin b) Chromosomearrow_forwardUse the gel to answer the following questions. You will be constructing a map of the plasmid, pDiddy. There are NO sites where multiple enzymes cut. How many base pairs long is the plasmid? 3kb 2kb 4kb 5kbarrow_forwardUse a drawing to illustrate the principle of DNA gel electrophoresis. (2 marks)-+arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY