WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 5, Problem 2MC
Summary Introduction
Introduction:
The bases in the DNA molecule vary.
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What are the component parts of a single DNA nucleotide?
Group of answer choices
A)a pentose sugar, a phosphate group and a base
B) A, G, C and T
C) ribose and deoxyribose
D) two C's, two A's, a G and a T
A DNA molecule consists of 500 nitrogenous bases, of
which 150 are G bases. So, the percentage of
nitrogenous base T is equal to?
choose the correct answer
A)20%
B)30%
C)40%
D)60%
Which of the following conventions is used to specify the sequence of bases in DNA
a) The sequence begins with the nucleotide that has a free 3' terminus
b) The sequence begins with the nucleotide that has a free 5' terminus
c) The sequence begins from the end closest to the first adenine
d) The sequence begins from the end closest to the first thymine
Chapter 5 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
Ch. 5 - Prob. 1SACh. 5 - Prob. 2SACh. 5 - Prob. 3SACh. 5 - Prob. 4SACh. 5 - Prob. 5SACh. 5 - Prob. 6SACh. 5 - Prob. 7SACh. 5 - Prob. 8SACh. 5 - Prob. 9SACh. 5 - Prob. 10SA
Ch. 5 - Prob. 11SACh. 5 - Prob. 12SACh. 5 - Prob. 13SACh. 5 - Prob. 14SACh. 5 - Prob. 15SACh. 5 - Prob. 1MCCh. 5 - Prob. 2MCCh. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 6MCCh. 5 - Prob. 7MCCh. 5 - Prob. 8MCCh. 5 - Prob. 9MCCh. 5 - Prob. 10MCCh. 5 - Prob. 11MCCh. 5 - Prob. 12MCCh. 5 - Prob. 13MCCh. 5 - Prob. 14MCCh. 5 - Prob. 15MCCh. 5 - Prob. 16MCCh. 5 - Prob. 17MC
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- 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 bondsarrow_forwardFor each of these symbols, write out the full name of the base and of the nucleoside. Indicate which are components of DNA and which are components of RNA:a. Tb. Ac. Gd. Ce. Uarrow_forwardWhich of the following is/are true about the two DNA strands that form a helix? (check all that apply) Select one or more: a.The 2 strands are antiparallel and complementary to each other b.The 2 strands are linked to each other by phosphodiester bonds c.The phosphate groups of nucleotides impart a negative charge to nucleic acidsarrow_forward
- A nucleoside is composed of a) a base+ a sugar b) a base+ a sugar+ phosphate c) a base+ a phosphate d) none of thesearrow_forwardWhich of the following is the monomeric unit of DNA. A. Nucleotides B. Deoxyribose C. Nitrogenous bases D. Phospatearrow_forwardIdentify the base and sugar in each of the following nucleotides: A. CMP B. dAMP C. dTMP D. UMParrow_forward
- The bases are linked to the _ position of the 5 carbon sugar in a nucleotide Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) 1' b) 2' с) 3' d d) none of the abovearrow_forwardWhich of the following is the correct way that heterocyclic bases are paired between two polypeptide chains of DNA? a. Pyrimidines-Pyrimidines b. Purine-Pyrimidine c. Purines-Purine d. Sugar-Phosphatearrow_forwardThe most important force for stability of the DNA double helix is: a. Disulfide bond b. Hydrophilic interactions c. electrostatic interaction d. Base stackingarrow_forward
- How does DNA differ from RNA with respect to the following characteristics? a) number of chains b) bases used c) sugar usedarrow_forwardIf you know that the number of nitrogenous bases in DNA = 4 and the number of amino acids = 20, then the number of possible genetic codes for these acids? choose the correct answer . A)20 B)24 C)60 D)64arrow_forwardThe following is diagram of a generalized tetranucleotide. Carbons exist at corners on the shapes and phosphate groups are filled circles. A. Is this a DNA or an RNA Molecule? B. Where is the 3’ end of this tetranucleotide? C. Given that the DNA strand which served as a template for the synthesis of this tetranucleotide was composed of the bases 5’-ACAG-3’, where are the expected bases?arrow_forward
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