Answer each of the following with a word, phrase, or numeral (4 points each = 16 points).Please label your answers as (a), (b), (c) and (d).(a) Among (i) hydrophobic effect, (ii) van der Waals interactions, (iii) hydrogen bonds and (iv)conformational entropy, the force disfavoring duplex B-DNA formation from single strands.(b) Reason why salt bridges at the surfaces of cytosolic proteins are weak.(c) Type of nucleic acid duplex that forms when all glycosidic bonds are anti, chains areantiparallel, and all sugar puckers are C3' endo.(d) Amino acid that is most commonly found in the cis configuration in proteins.

As a result of the hydrophobic effect, van der Waals contacts, hydrogen bonds, and conformational…

Answered: Answer each of the following with a…

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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Similar questions

The variable structures of a nucleotide are the sugar and the phosphate group. (a). Say if the statement written above is true or false. (b). Give ONE reason for your answer in part (a).
Which of the following statements is (are) true? (a) The two strands of DNA run parallel from their 5' to their 3' ends. (b) An adenine–thymine base pair contains three hydrogen bonds. (c) Positively charged counterions are associated with DNA. (d) DNA base pairs are always perpendicular to the helix axis
Consider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary)as defined for proteins.(a) What level is shown by double-stranded DNA?(b) What level is shown by tRNA?(c) What level is shown by mRNA?
(a) In what important ways do the α helix and β sheet structures differ? (b) How are they similar?
Number of hydrogen bonds between adenine and thymine? * (a) 1 (b) 2 (c) 3 (d) 4
If a polyribonucleotide contains equal amounts ofrandomly positioned adenine and uracil bases, what proportion of its triplets will encode (a) phenylalanine, (b)isoleucine, (c) leucine, (d) tyrosine?
Describe the functions of the following proteins during DNA breaks and repair: (i) Ku70 (ii) Uracil DNA glycosylase
Which conformation of DNA – (i) totally double helix, (ii) minimally unwound or (iii) largely unwound – would have the highest relative absorbance at 260 nm. Would a molecule of DNA having a higher content of guanine and cytosine than of adenine and thymine have a higher or lower melting temperature (Tm) than one with the reverse composition?
True or False for each question ( ) Guanine, Adenine, Uracil, and Cytosine are commonly found in both DNA and RNA. ( ) The DNA nucleotide sequence was elucidated by Watson and Crick from considerations of x-ray structure data generated by Rosalind Franklin, Chargaff’s rule, and molecular modeling. ( ) The phosphodiester backbone in major grooves in DNA are closer together than in minor grooves. ( ) Major grooves in DNA are often sites where DNA-binding proteins bind. ( ) Base stacking in DNA results in hydrophobic effects and van der Waals interactions that provide stability to the DNA double helix. ( ) Due to stacking interaction, double-stranded DNA absorbs less light at 260 nm than light absorbed by single-stranded DNA. ( ) DNA melting temperature (Tm) for a region of DNA is the temperature at which all of the DNA molecules are denatured to the single-stranded state. ( ) Sequences rich in G-C base pairs have more stability than…
The Bacteria Escherichia coli DNA genome has a molecular mass of about 3.1 X 10° D. In your answers, show how you came up to each result? (a) How many base pairs does this bacterium contain? (b) How many full double-helical turns does this DNA contain? (c) How long is this DNA in µm?
Please answer all
The melting temperature Tm of DNA can be predicted by calculation without actually measuring it. Calculate the Tm of the DNA double strand shown in (1) to (3), and discuss the results. The numbers in parentheses indicate the degree of polymerization of nucleotides.(1) A(10) + T(10), (2) A(15) + T(15), (3) G(10) + C(10)

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