Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 4, Problem 12P
Interpretation Introduction
Interpretation:
Explain why a double helix DNA is connected with Mg2+ cation.
Concept introduction:
Magnesium ions induced in GC base pairs cause bending of helix for DNA sequence of AT pairs.
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Students have asked these similar questions
This is DNA. Locate the nitrogen bases (nitrogens are blue). Where are they located in the molecule?Locate the sugars and phosphates, and describe their location. Adjacent nucleotides are linked by covalent phosphodiester bonds (-O-P-O-) produced by a condensation reaction. What parts of the adjacent nucleotides are linked by phosphodiester bonds?Two nitrogenous bases extending towards the middle of the double helix. Are there any covalent bonds between these bases?If there are no covalent bonds between these bases, what other kinds of bonds might hold the two strands of the double helix together?
An extra piece. In one type of mutation leading to a form of
thalassemia, the mutation of a single base (G to A) generates a new 3'
3' splice site (blue in the illustration below) akin to the normal one
(yellow) but farther upstream.
Normal 3' end
of intron
5' CCTATTGGTCTATTITCCACCCITAGGCTGCTG 3'
5' CCTATTAGTCTAIIIICCACCCTTAGGCTGCTG 3'
What is the amino acid sequence of the extra segment of protein
synthesized in a thalassemic patient having a mutation leading to
aberrant splicing? The reading frame after the splice site begins with
TCT.
Need help.
Which one of the following statements is FALSE?
Group of answer choices
A.Beta-pleated sheets are part of the secondary structure of proteins
B.The nitrogenous bases of DNA are located on the inside because they are hydrophobic in character
C.The peptide bond is formed by dehydration synthesis
D.Alpha helices are stabilized by attraction between the amino acid R groups
E.The peptide bond is rigid and planar and has partial double bond character
Chapter 4 Solutions
Biochemistry
Ch. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10P
Ch. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52P
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- true or false1. In the structural characteristics of a nucleotide, the phosphate subunit is bonded to the sugar subunit.2. In the structural characteristics of a nucleotide, the nitrogenous base subunit is bonded to the phosphate subunit.arrow_forwardPlease don't copy. Give me correct answer.arrow_forwardDUE IN 30 MINUTES. This is multiple choice. No need for explanation, answer only. Thank you! A strand of DNA has the following bases: CACGGCC. If the adenine base was deleted, which amino acids would be coded for? a. valine, proline b. proline, arginine c. glycine, arginine d. glycine, alaninearrow_forward
- E Threonine 6. You have identified some intermediates in threonine synthesis: A, B, C, D and E. You grow a few of your mutants in the presence of these different intermediates to determine the order in which the gene products act. Below are your results. A (+) means growth and a (-) means no growth. Given these data, draw the best possible pathway for the synthesis of threonine. The diagram should use arrows to indicate one intermediate being changed to another intermediate. Indicate which gene produces the product responsible for the conversion by listing the mutant in that gene above the arrow. Mt1 Mt2 Mt4 Mt7arrow_forwardcotton. Which aspect of the structure of cellulose accounts for its strength? Cellulose is an abundant structural polysaccharide found in plant cell walls, wood, and interchain hydrogen bonding between extended molecular chains repeating unit of N-acetylglucosamine a(1→4) linkages between glucose units branches that occur every 12-30 residues forms a helical conformation in water Which of the following is not correct about chitin? fundamental constituent of the exoskeletons of crustaceans, insects, and spiders b) chitin chains form extended ribbons that pack side-by side a) similar to cellulose but with repeating units of N-acetyl-D-glucosamine c) d) found mainly in the liver in humans, making up as much as 10% of liver mass stacked sheets of chitin strands are stabilized by intrastrand, interstrand, and intersheet hydrogen bondsarrow_forwardPeptide mass determination. You have isolated a proteinfrom the bacterium E. coli and seek to confirm its identityby trypsin digestion and mass spectrometry. Determinationof the masses of several peptide fragments has enabled youto deduce the identity of the protein. However, there is adiscrepancy with one of the peptide fragments, whichyou believe should have the sequence MLNSFK and an(M 1 H)1 value of 739.38. In your experiments, yourepeat edly obtain an (M 1 H)1 value of 767.38. What isthe cause of this discrepancy and what does it tell youabout the region of the protein from which this peptide isderived?arrow_forward
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