Which of the following correctly describes a structural feature of DNA or RNA? a. RNA may fold into complex three-dimensional structures necessary for its activity b. RNA & DNA are both usually double stranded c. DNA tends to fold into complex three-dimensional structures required for its activity d. DNA contains a pentose sugar with a hydroxyl group in the 2' position

Which of the following correctly describes a structural feature of DNA or RNA? a. RNA may fold into complex three-dimensional structures necessary for its activity b. RNA & DNA are both usually double stranded c. DNA tends to fold into complex three-dimensional structures required for its activity d. DNA contains a pentose sugar with a hydroxyl group in the 2' position

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter8: Dna Structure And Function

Section: Chapter Questions

Problem 9SA: Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from...

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Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from ________. a. the nucleotide b. DNA polymerase c. phosphate-group transfers from ATP
One species DNA differs from others in its _______. a. nucleotides c. double helix b. DNA sequence d. sugar-phosphate backbone
. Which of the following statements best summarizes the differences between DNA and RNA? A) DNA is transcribed using RNA polymerase to form mRNA and mRNA is translated by the Ribosome to form a polypeptide, B) The bases in DNA contain sugars, whereas the bases in RNA do not contain sugar. C) DNA nucleotides contain a different glucose compared to RNA nucleotides. D) DNA is formed using the base uracil, whereas RNA uses the base thymine. E) DNA encodes the sequence of amino acids for the primary structure of a polypeptide whereas mRNA does not
Which of the following is NOT a dissimilarity between RNA and DNA? a) Types of bases b) Double-stranded vs. single-stranded c) Type of sugar d) Formation of Phosphodiester bonds
Which of the following statements about nucleic acids is not correct? Select one: A. In DNA the distance between the strands of the double helix is relatively constant. B. The growing DNA polymer is synthesized in the 5' to 3' direction. C. The enzymes that catalyze DNA synthesis are known as DNA polymerases. D. RNA strands are synthesized in the 3' to 5' direction. E. Unlike DNA, RNA is easily cleaved because the 2'-OH group of the ribose is a nucleophile that catalyzes hydrolysis of the strand.
Which of the following is NOT true of the structure of DNA? Select one: a. The backbone is made up of alternating sugars and phosphates. b. Nitrogenous bases A and C bond together, and bases T and G bond together. c. It contains all of the genetic information for an individual. d. The molecule has the shape of a coiled ladder.
Which of the following represents a NON-covalent bond? A) phosphodiester bond B) pairing of an adenine and a thymine in double stranded DNA C) binding of an hydroxyl group to the 3' carbon of ribose. D) linkage between a nitrogenous base and a ribose sugar in a nucleotide
Segments of DNA act as templates that guide the amino acids to join together to form a. proteins. b. sugars. c. phosphates. d. fours kinds of bases. e. all of the above.
A DNA helix is found in the _____ form while an RNA helix is found in the _____ form. A) A, B B) B, A C) C, D D) Right, Left
Which of the following is NOT a characteristic of the DNA Double Helix? a) The two strands run in an anti-parallel fashion based on their polarity. b) Hydrogen bonding between nucleotides holds the strands together. c) DNA is 20 Angstrom's wide. d) The percentage of Guanine and Thymine present in a double helix strand are always equal.
Which of the following is true of DNA but not RNA? It can polymerize by adding monomers onto either the 5' or the 3' end. It forms intermolecular base pairs, forming stable double-stranded structures. Release of PPi from the monomer provides the energy for polymerization. It has secondary structure.
Which of the following features of DNA is required for it to behave as a self-replicating molecule? A) A sugar phosphate backbone B) Complementary base pairing C) arrangement as double helix D) Phosphodiester bonds E) All of the above