Cells contain two types of nucleic acids: DNA and RNA. Which of the following statements about DNA and RNA is the most accurate? DNA contains uracil whereas RNA contains thymine. All three of the other options are correct. The sugar component of DNA nucleotides contains one less oxygen molecule than is found in the sugar component of RNA nucleotides. Hydrogen bonding can occur between bases in DNA molecules, whereas this does not occur in RNA molecules.

Cells contain two types of nucleic acids: DNA and RNA. Which of the following statements about DNA and RNA is the most accurate? DNA contains uracil whereas RNA contains thymine. All three of the other options are correct. The sugar component of DNA nucleotides contains one less oxygen molecule than is found in the sugar component of RNA nucleotides. Hydrogen bonding can occur between bases in DNA molecules, whereas this does not occur in RNA molecules.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 18QP

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Which is not a nucleotide base in DNA? a. adenine c. glutamine e. cytosine b. guanine d. thymine f. All are in DNA.
DNA and RNA are both nucleic acids, but their structures and functions differ. Which of the following options correctly describes the structures and functions of DNA and RNA? a RNA is made from DNA and is used in transcription, while DNA is used in translation. b DNA is a double helix that is used to make proteins, while RNA is single-stranded and used to make lipids. c In DNA, adenine, thymine, guanine, and cytosine join together and carry all of the genetic information. RNA is made from adenine, uracil, cytosine, and guanine and is used to make proteins. d DNA is a double helix that carries all of the genetic information of an organism, while RNA is single-stranded and carries only half of the genetic information.
Which of the following is true about the structure of nucleotides? A. Purine nucleotides cannot base pair with pyrimidine nucleotides. B. Pyrimidine bases are larger than purine bases. C. Purine and pyrimidine bases are found in DNA and RNA. D. Thymine base is found in DNA and RNA.
Which of the following is a DNA nucleotide? a phosphate group, guanine and deoxyribose a diphosphate group and uridine thymine and deoxyribose a phosphate group, adenine and ribose
RNA and DNA have the following characteristic in common. Both use the same four nitrogenous bases. None of the other answers are correct. Both commonly form double-stranded molecules in the cell. Both contain a sugar-phosphate backbone in their chains of nucleotides. Both use 2-deoxyribose sugars in their nucleotides.
Which of the following pertains to an RNA nucleotide and not to a DNA nucleotide? Select one: A. Contains the sugar ribose B. Contains a nitrogen-containing base C. Contains a phosphate molecule D. Becomes bonded to other nucleotides following a dehydration reaction
Which of the following statements explains what nucleic acids are? Select one: A. Nucleic acids are chains of five-membered ring sugars, each bonded to a heterocyclic amine, linked by phosphate groups. B. They are acidic in nature. C. They are the carriers of genetic information. D. DNA and RNA are collectively known as nucleic acids. E. all of the above
Which of the following is not a difference between RNA and DNA? a. RNA has Uracil, DNA has Thymine b. RNA is single stranded, DNA is double stranded c. RNA has Thymine, DNA has Uracil d. RNA has ribose sugar, DNA has deoxyribose sugar
A DNA molecule contains 30% G. What percentage of its bases are A?a. 30%b. 20%c. 15%d. 10%e. none of the above
Which of the following are nitrogen bases that can be contained in DNA nucleotides? Select all that apply. a guanine b uracil c cytosine d thymine
In DNA the nucleic acid bases form hydrogen bonds between them, which are responsible for the formation of the double-stranded helix. A hydrogen bond donor is defined as any hydrogen atom that can participate in a hydrogen bond, whereas a hydrogen bond acceptor is defined as any atom that can “receive” that hydrogen atom to form a hydrogen bond. How many hydrogen bond acceptors does guanine (shown below) have? a) 3, b) 5 c) 4 d) 6 e) 7
Consider an intact length of DNA consisting of 140 total nucleotides (70 nucleotides/strand), with 40 total adenine nitrogen bases. How many of each of the following molecules would be found in the length? MoleculeNumber Adenine40 Guanine___ Thymine___ Deoxyribose___ Uracil___ Phosphate Groups___ Ribose___ Cytosine___