Which of the following are shared properties of DNA and RNA three-dimensional structureformation?Select one or more:a. Single strands can form complex structures with catalytic activityb. Purines generally pair with pyrimidinesc. Palindromic sequences result can result in the formation of hairpin or cruciformstructuresd. The most stable form for a random sequence is known as B forme. The formation of a structure involves the bonding of complementary sequences

Ribonucleic acid (RNA for short) is a nucleic acid present in all living cells that has a structural…

Answered: Which of the following are shared…

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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Because of the helix dipole, the phosphate ions are likely to bind to a. The side-chains of a-helix b. The C-terminus of a-helix c. The N-terminus of a-helix d. The carbonyl group of the peptide bond
Double-stranded regions of RNA: a. are less stable than double-stranded regions of DNA. b. can be observed in the laboratory, but probably have no biological relevance. c. can form between two self-complementary regions of the same single strand of RNA. d. do not occur. e. have the two strands arranged in parallel (unlike those of DNA, which are antiparallel).
In Watson and Crick's model of DNA structure, the two strands of the DNA double helix are joined through a. Ionic bonds b. Hydrophobic interactions c. Covalent bonds d. Disulfide bonds e. Hydrogen bonds
In the Watson-Crick structure of DNA, the: a. adenine content of one strand must equal the thymine content of the same strand. b. nucleotides are arranged in the A-form. c. purine content (fraction of bases that are purines) must be the same in both strands. d. two strands are parallel. e. the strands are complementary to each other.
The RNA World theory states that RNA preceded DNA as the primary information-storing molecule, and life on early earth consisted entirely of RNA molecules. Which of the following provides the most direct support for this theory? A B с D The ribose sugar on the RNA nucleotide contains a hydroxyl group that increases its chemical stability. RNA molecules do not usually form a complementary double helix and therefore require less biomolecular resources to synthesize. RNA molecules consist of only four nucleotides, making their synthesis and replication relatively simple. The chemical versatility of RNA molecules allows them to store information as well as to fold into different functional shapes.
RNA was isolated from a tissue with a solution buffered at pH 12. However, no RNA was obtained. Why? a. The 5’ OH group of the ribose is protonated (positive charged) at pH 12 and reacts with the phosphorus atom to cleave the phosphodiester bond. b. The 5’ OH group of the ribose is deprotonated (negative charged) at pH 12 and reacts with the phosphorus atom to cleave the phosphodiester bond. c. The 2’ OH group of the ribose is deprotonated (negative charged) at pH 12 and reacts with the phosphorus atom to cleave the phosphodiester bond. d. The 2’ OH group of the ribose is protonated (positive charged) at pH 12 and reacts with the phosphorus atom to cleave the phosphodiester bond.
A protein is made up for two polypeptides that differ in shape. Each polypeptide has one domain. Which of the following is NOT true? a. the protein is stabilized by hydrogen bonds b. the two polypeptide are encoded by the same gene c. the protein has quaternary structure d. none of the above e. the protein is a heterodimer
If an RNA sample were composed of 20% adenine, what would be the percentage of guanine?
You decide to play mad scientist and try to make an ‘RNA’ like molecule with a different Aldopentose. (remember ‘normal’ RNA uses ribose) a. Which one would give you the best chance of making an RNA like molecule. Why would the others most definitely fail? (see image attached) b. Come up with a name for your new molecule

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