Adenine and thymine are complementary base pairs. The two strands are anti-parallel. The base sequence is read from 3' to 5' direction. Franklin and Wilkins obtained the X-ray diffraction photographs of DNA fibers.
Q: For a DNA sequence 5'-CTAAGCCGGAT-3', what is the complementary DNA sequence? Question 6…
A: DNA or Deoxyribonucleic acid serves as the hereditary material of almost all living entities (some…
Q: In the complementary base-pairing rule, ________________. Question 9 options: a nucleotide can…
A: Erwin Chargaff, a scientist, observed that practically all DNA molecules have roughly equal amounts…
Q: Using your own words and including the phrases “5' to 3" and "3' to 5" explain how a double helix of…
A: The genetic material of many species, including humans, is DNA, or deoxyribonucleic acid. The…
Q: What monomer gets added into DNA? Deoxyribonucleoside pentosephosphate Nucleotide triphosphate…
A: Nucleotides are the building blocks of DNA and RNA. DNA contains deoxyribose sugar while RNA…
Q: Why is complimentary base pairing vital to the structure of DNA?
A: Answer of the question given below...
Q: Select the chemical consequences that could contribute to DNA instability at AP sites. fewer…
A: AP site is Apurinic site or Abase site at which nitrogen base is lost from the nucleotide of DNA and…
Q: In the Watson-Crick model of DNA structure: Question 5 options: T can form three hydrogen…
A: Introduction: DNA stands for 'deoxyribonucleic acid' and it is the hereditary material in humans and…
Q: are there two helicases because its being split both ways or just one?
A: It is an enzyme that plays major role in the unwinding of double stranded DNA molecule during…
Q: Is a DNA molecule neutral, negatively charged, or positively charged? Explain.
A: Deoxyribonucleic acid or DNA is a molecule composed of two polynucleotide chains that coil around…
Q: onsidering the number of base pairs, compute for the actual length (in micrometers) of this DN
A: There are 7 base pairs. Length of one base pair is 3.4 Angstrom. Length of 7 base pairs is 3.4 X 7=…
Q: If a double-stranded DNA molecule is 15% thymine, what are the percentages of all the other bases?
A: The deoxyribonucleic acid is the genetic material that is passed from one generation to another…
Q: Chargaff’s rule states that the amount of _______ in DNA is always roughly equal to the amount of…
A: Introduction :- The Chargaff rule of base pairing and how the two strands of DNA are bound together…
Q: In the double helix of DNA, the ____________ bases of one strand exhibit complementary base…
A: The question asks about the helical structure of DNA in terms of complementary bases.
Q: Describe the three important of the protein DnaA.
A: In this configuration, the DNA(Deoxyribonucleic acid) duplex hinders replication. Only when both…
Q: What's the sugar of DNA?
A: Deoxyribose Nucleic Acid (DNA) is the genetic material of organisms present in the nucleus of the…
Q: If the G+C content of a sample of DNA is 46%, what are the proportions of all four nucleotides?
A: Nucleotides are molecules that consist of phosphate and nucleoside. These serve as monomeric units…
Q: According to the Watson- Crick model how many polynucleotide chains does a DNA molecule have?
A: The Watson-Crick Model of DNA is a double-stranded, helical molecule. It consists of two…
Q: What are some reasons why DNA might be double stranded instead of single stranded?
A: It is a molecule composed of two polyneuclotide chains colied around each other to form double helix…
Q: Which of the following descriptions of regions A, B, and Care INCORRECT? A = minor groove, sugar…
A: On one side of the helix, the strand backbones are closer together than on the other. When the…
Q: Provide an explanation for why in DNA, the base G is always base paired with C and A is always base…
A: DNA is a double layered structure. The double helix model is explained by Watson and Crick. The two…
Q: c) Let us consider the following toehold DNA system: 2 2* 1/2 12 In textual form this is given by…
A: In the provided scenario, question (c) examines the impact of extending the toehold length from 4 to…
Q: How will each of the following substances or conditions affect DNA structure? a. ethanol; b. heat;…
A: Deoxyribonucleic acid or DNA is a molecule composed of two polynucleotide chains that coil around…
Q: Two highly negatively charged complementary strands of DNA come together to form a double helix.…
A: Deoxyribonucleic acid (DNA) is the nucleic acid which contains the hereditary information that is…
Q: If A represents 40% of the nucleotides in a particular piece of double stranded DNA, how often will…
A: As per Chargaff's rule, Amount of adenine = amount of thymine Amount of guanine = amount of cytosine
Q: Which of the following equations is a prediction based on Chargaff’s rules for the content of DNA?…
A: Chargaff's rule says that DNA should have 1:1 ratio of pyrimidines and purine bases. According to…
Q: A-DNA is a double-stranded form of DNA that has a helical radius and helical pitch compared to the…
A: Biological macromolecules are those large molecules that are necessary for the survival and growth…
Q: The two strands in DNA are not identical but complementary. Explain.
A: A DNA nucleotide is composed of five-carbon sugar called deoxyribose, a phosphate group, and one of…
Q: 1). What is the concentration of a solution of DNA with an OD260 of 0.3? ----I got 15 micrograms/mL…
A: Values given OD 260 = 0.3 A260 of 1.0 = 50µg/ml pure dsDNA Concentration (µg/ml) = A260 reading ×…
Q: Which of the following descriptions of regions A, B, and C are INCORRECT? A = minor groove, sugar…
A: Deoxyribonucleic Acid (DNA) is the informational molecule in the cell containing all the hereditary…
Q: What are the kinds of unusual structures of DNA you are aware of? List at least four examples.…
A: DNA does not always take the form of a double helix. It can often be found creating structures…
Q: All 20 of the amino acids coded for by DNA are L configuration. With one exception, theyalso all…
A: The question is asking us to identify the one amino acid that has an R absolute configuration, while…
Q: TYPE in the answers into the blank cells of the table, you will have to use the scroll bar to see…
A:
Q: Why does DNA with a high A-T content have a lower melting temperature, Tm, than DNA with a high G-C…
A: Deoxyribonucleic acid(DNA) is a molecule that contains two polynucleotide chains that coil around…
Q: Below is a very toxic compound that can be also used to fight different cancers. Both its toxicity…
A: Introduction :- Cancer is the abnormal condition of our body , in which uncontrolled proliferation…
Q: Using the figure below, which end of the double helix,"A" or "B", would be considered the 5 prime…
A: Introduction DNA is an organic molecule that includes genetic information as well as instructions…
Q: The backbone of the DNA molecule is made up of two alternating componebts, what are these? Explain.
A: DNA is considered to be the genetic material within the nucleus that gets packed in thread-like…
Q: QUESTION 1 For the DNA structure below write the correct base sequence in the form: 5'-ATCT-3…
A: Question 1. Nucleic acids are the genetic material of the cell and are composed of recurring…
On the given choices, which of the following is incorrect about DNA?
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- Chemical analysis shows that a nucleic acid sample contains A, U, C, and G. Is this DNA or RNA? Why?How many kilobases of the DNA strand below will code for the protein product?DNA contains many hydrogen bonds. Are hydrogen bonds stronger or weaker than covalent bonds? What are the consequences of this difference in strength?
- A DNA strand was sequenced using the Sanger method (https://www.youtube.com/watch?v=KTstRrDTmWI). The reaction tube contained the DNA strand, fluorescently labelled dideoxynucleotide triphosphates (ddATP – yellow, ddGTP – green, ddCTP – blue, ddTTP - red), deoxynucleotide triphosphates, DNA polymerase, or its Klenow fragment. Synthesis of DNA is allowed to proceed, and the results are shown on the right: 15 14 13 12 11 10 (a) What is the sequence of the copy and the template strands? (b) If the template strand were in the 5'-3' direction, what will be the sequence of the DNA copy? Nucleotide LengthIn the DNA double-helix structure, the larger of the two grooves formed by the helical twist where certain base pairs are exposed is called the:Calculate the approximate number of: Base pairs in 6 helical turns of B - DNA (based on the values from early X-ray diffraction structures ). Calculate the vertical length of the 6 helical turns in the B-form of DNA.
- The two sides of the DNA double helix are connected by pairs of bases (adenine, thymine, cytosine, and guanine). Because of the geometric shape of these molecules, adenine bonds with thymine and cytosine bonds with guanine. The figure (Figure 1) shows the thymine-adenine bond. Each charge shown is ±e, and the H−N distance is 0.110 nm . Calculate the net force that thymine exerts on adenine. To keep the calculations fairly simple, yet reasonable, consider only the forces due to the O−H−N and the N−H−N combinations, assuming that these two combinations are parallel to each other. Remember, however, that in the O−H−N set, the O− exerts a force on both the H+ and the N−, and likewise along the N−H−N set. Express your answer in newtons. Is the net force attractive or repulsive?A piece of DNA is cut into four fragments as shown below. A solution containing the four fragments is placed in a single well at the top of an agarose gel. Using the information given below, draw (below the well) how you think the fragments will be aligned on the gel following electrophoresis. Label each fragment with its corresponding letter. Remember, each band on the gel will be the same width, equal to the width of the well at the top of the gel. These should all be in one lane. What is it about the chemistry of DNA that causes it to be uniformly negatively charged?A piece of DNA is cut into four fragments as shown below. A solution containing the four fragments is placed in a single well at the top of an agarose gel. Using the information given below, draw (below the well) how you think the fragments will be aligned on the gel following electrophoresis. Label each fragment with its corresponding letter. Remember, each band on the gel will be the same width, equal to the width of the well at the top of the gel. These should all be in one lane. What if you had two different DNA fragments that were exactly the same length as measured in base-pairs. Would it be possible to distinguish them using this type of electrophoresis? How would they appear on a gel?
- A single strand of DNA, 24 nucleotides long, with the sequence 5'-TTTCCCgggAAAgggTTTAAAggg-3' is in a test tube. (Note that G's are shown in lowercase, so that your eye can better distinguish them from C's) Other than the appropriate buffer solution, what else needs to go in the test tube to so that we end up with a piece of double stranded DNA, 24 base pairs long, with the above sequence comprising one of the two strands?draw a strand of DNA 4 nucleotides long (4 nucleotides on each side). Label the 5’ ends, the 3’ ends, the bond that holds the DNA backbone together, the glycosyl bond, and the bond that holds the nitrogenous bases together. You can use “P” to represent phosphate, and ATCG to represent the nitrogenous bases. Please try to draw the sugar accurately and include any unbonded functional groups, including the oxygen within the molecule.Which of the following are possible base compositions for double- stranded DNA? O A=30% G=20% C=20% T=30% U=0% O A=20% G=35% C=35% T=20% U=20% O A=30% G=20% C=35% T=15% U=0% O All are correct