**Question:** Which of the following changes occur with a double-stranded DNA if it is heated to 95°C at neutral pH?- A. Increase in the absorption of ultraviolet light at 260 nm- B. Unwinding of the helical DNA structure- C. Separation of the two DNA strands- D. Hydrolysis of the N-glycosidic bond between the base and deoxyribose- E. Breakage of the phosphodiester bonds between adjacent nucleotides- F. Breakage of the hydrogen bonds between guanines and cytosines

The hereditary substance found in practically all species is DNA or deoxyribonucleic acid. DNA aids…

Answered: Which of the following changes occur…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Given the DNA sequence; 3’-GCTACGTCGC-5’ 5’-CGATGCAGCG-3’ What is the total number of hydrogen bonds between the bases? 23 28 26 27 24
The two strands for the helix-shaped DNA molecule are heldtogether by electrostatic forces as shown in class. Due to electron sharing, themagnitude of the net average charge on the H and N atoms, each, is 0.2e. Thenet average charge on the C and O atoms, each, is 0.4e. The distance betweenany two adjacent atoms on the same molecule is 0.1nm. Since electric fieldsdecrease as an inverse square law, they die off quickly with distance. So, theonly fields that really contribute to any given bond are due to the 3 atomsalong the red dotted line in the class diagram (two atoms on one'molecule andone atom on the other molecule).Calculate the electric fields and net force between a thymineand an adenine pair.=Calculate the electric fields and net force between a cytosineand a guanine pair.nConsider the OHN bond in the AT nucleotide. Can theelectric field be zero anywhere along the axis of this bond? If not,explain why not. If so, find where the electric field is zero.
ation Beta sheets shown in the figure below are: H O One strand is parallel and another is anti-parallel Parallel [1 Not enough information Anti-parallel
How many times wider is a 30 nm fiber than a DNA double helix? Show your work.
Why is DNA less susceptible to base catalyzed hydrolysis than RNA? DNA lacks a 2'OH group DNA lacks a 3' OH group DNA contains Thymine and not Uracil DNA forms a double helix
Draw out the following DNA sequence on a whitesheet of paper along with itscomplementary strand. Just as we have practiced on the assignment. Label the ends (5' and 3) and make sure to associate those ends with the correct functional group. Include the proper number of hydrogen bonds between base pairs.3' CCAGGTACT 5'
One strand of DNA has the base sequence 5'-CATG-3' Draw this stretch of DNA, showing BOTH strands, using a simplified model of a nucleotide as shown: Label the sugar-phosphate backbone, the 5' and 3' ends of each strand, and the regions of hydrogen bonding.
50 A The Backbone of the DNA molecule is made of which componere(s) of the nucleotide shown in the diagram? nucleotide B C AAB DBC CAC DB only E None of these
13. a. Draw in the corresponding DNA nucleotide that would base pair with the adenine nucleotide shown below using the same level of detail as provided in the image below. Hint: Remember that DNA bases pair in the antiparallel orientation. орасна you A OH H b. How do you know the adenine nucleotide drawn above is from DNA and not RNA?
Match the statement with the phase of the cell cycle it describes. The nucleus divides O G1 G2 O mitosis O cytokinesis
Which of the following is something that DNA and RNA have in common? They are both nucleic acids They are both only found in the nucleus They are both made of deoxyribose sugar They are both double stranded Sign out US Lenovo 40 esc $4 1. 2 4. 7 tab W e r y f k a V n shift alt ctrl ctrl alt
Which of the following DNA strands below is expected to have the highest melting temperature? TТAGCTTАТСТА AATCGAATAGAT АТСТААТСАТСА TAGATTAGTAGU TTACGACGATAA ААTGCTGCTAТ ATGCTGGGACGG TACGACCCTGCC

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