Which of the following feature/s characterize B-form DNA?I. Two antiparallel, polynucleoside chains are coiled in a helix around a common axis.II. The purine and pyrimidine bases lie on the inside of the helix.III. The pairing of bases follows Chargaff's rules such that A pairs with U and G pairs with C.IV. B-DNA has a longer helical pitch compared to Z-DNA.O Ill onlyO Il onlyO l and IIO Il and IIIO None are correctO , II, and IIO l only

The genetic material in most living organisms is present in the form of deoxyribonucleic acids…

Answered: Which of the following feature/s…

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 helix of an A-DNA differs from the helix of a B-DNA in all of the following EXCEPT which phrase? a. polarity of the strands b. thickness of the helix c. tilt of the bases d. appearance of the major and minor groove
Describe the structure of DNA. The two strands of DNA are antiparallel. What does the term antiparallel mean? Describe how DNA is tightly packaged. Your description should include the terms histones, chromatin, nucleosomes and chromosomes.
It has been estimated that each phosphate group in B-DNA can form hydrogen bonds with six water molecules. Draw a diagram of a phosphodiester linkage with its associated water molecules
DNA structure depends on base pairing of its four nucleotides, A, C, T, and G. Nucleotide A pairs with T, and nucleotide C pairs with G. This forms a four-letter DNA “alphabet." Because DNA codes for amino acids in sets of three nucleotides, there are 4 cubed (4'), or 64, possible combinations, coding for 20 different amino acids. What is the best explanation for why there is no selective advantage for DNA to have five nucleotides (e.g., A, C, T, G, and E) with C pairing with either G or functionally equivalent E? It would be impossible to form the DNA molecule, because it must have an equal number of Cs and Gs. Because G and E have the same role, there would still be four functional letters of the alphabet. Replication would be inaccurate because sometimes C would bond with G and sometimes C would bond with E. There would be a five-letter alphabet with 125 combinations, which is too numerous. It is impossible because there are not five known nucleotides in the cell.
this is the answer in the case of A-DNA, replace A-DNA with B-DNA, would the answer be the same or would it be different (circle the answer if it is different)? please explain
If adenine makes up 22% of the bases in a given double-stranded DNA molecule, whatpercentage is made up of guanines?
a.Write out the complementary strand to the following sequence. Begin with the 5' of the end of the complementary strand. 3 ' AGCAGTGACA5' b. Which of the following statements about DNA structure is correct? *The phosphodiester backbone of DNA is composed of covalent bonds between nudeotides * Two DNA strands in a double helix have their 5ends next to each other * Hydrogen bonds connect phosphate and hydroxyl groups on neighbouring nucleotides * The 5hydroxyl group on one nucleotide is linked to the 3 phosphate on its neighbor * In a double helix, purines pair with purines, and pyrimidines with pyrimidines C). Topoisomerases are enzymes that : * Create nucleosomes *Break phosphodiester bonds between DNA nucleotides * Synthesize a new strand of DNA from a single-stranded DNA template *Break hydrogen bonds between DNA nucleotides *Remove proteins from DNA
Mention and explain 4 characteristics of the Structure of DNA.
The single strand of DNA below forms a stem-loop structure structure with a loop that is 6 nucleotides long. 5’ - T A T C G C T A __ __ __ __ __ __ __ __ - 3’ What are the rest of the nucleotides? Group of answer choices a. 5’ – ATAGCATC – 3’ b. 5’ – CTACGATA – 3’ c. 5’ – AATCGTAG – 3’ d. 5’ – GATGCTAA – 3’
1. Consider the following DNA segment: 5’….ATGCCCGATCAGAGCTTT…3” 3’….TAGGGGCTAGTCTCGAAA…5’ A. How many Phosphodiester bonds are required to form this segment of double-stranded DNA? B. How many hydrogen bonds are present in this DNA segment?
Which of the following statements about RNA is/are incorrect? I. RNA strand synthesis does not occur during replication. II. All RNA strands produced during transcription are translated into proteins. III. RNA strands are composed of 10 nucleotide bases per turn. IV. RNA strands can pair with a DNA strand. V. RNA may be synthesized in the 5'-3' orientation and vice-versa (3'-5') depending on the orientation of the template DNA strand O I, II, and IV O I, II, III, IV, and V O II, IV and V O II, IV and V OI, II, III and V O Il and III
Which of the following statements are true about doublestranded DNA?a. A + C = T + Gb. A + G = C + Tc. A + T = G + Cd. A/G = C/Te. A/G = T/Cf. (C + A) / (G + T) = 1

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