Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 12, Problem 2RQ
Summary Introduction
To draw: The general structure of DNA
Introduction: Deoxyribonucleic acid (DNA) is the genetic material of almost all the organisms (except viruses). It is a double-stranded structure that contains coded genetic material in the form of nucleotides.
Summary Introduction
To determine: The identical and varying components of all four DNA nucleotides.
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Describe in detail the structure of DNA. Of what is a nucleotide composed? Which are thepurines and pyrimidines? What are the bonding rules? What kind of bond holds the two DNAstrands together?
How many combinations of DNA bases are for a polynucleotide of 7 base pairs in length?
If a DNA double helix contains 28% T nucleotides, then what is the percentage of A nucleotides?
Chapter 12 Solutions
Biology
Ch. 12.1 - Which do you think would be more difficult to...Ch. 12.1 - If viral genetic material had the same structure...Ch. 12.1 - Prob. 1CYLCh. 12.1 - Prob. 2CYLCh. 12.2 - Muscles, Mutations, and Myostatin The sequence of...Ch. 12.2 - Prob. 1CYLCh. 12.3 - describe the process of DNA replication, including...Ch. 12.3 - explain why DNA replication is called...Ch. 12.3 - Muscles, Mutations, and Myostatin "Double-muscled"...Ch. 12.4 - How Much Genes Influence Athletic Prowess?
Ch. 12.4 - explain what mutations are and how they occur?Ch. 12.4 - explain why mutations are rare?Ch. 12.4 - describe the different types of mutations?Ch. 12.4 - Prob. 1TCCh. 12 - If a parental DNA strand has the base sequence...Ch. 12 - Prob. 2MCCh. 12 - Prob. 3MCCh. 12 - The rungs of the DNA double helix consist of a....Ch. 12 - Prob. 5MCCh. 12 - Prob. 1FIBCh. 12 - Prob. 2FIBCh. 12 - Prob. 3FIBCh. 12 - Prob. 4FIBCh. 12 - Prob. 5FIBCh. 12 - Prob. 6FIBCh. 12 - Prob. 1RQCh. 12 - Prob. 2RQCh. 12 - Describe the structure of DNA. Where are the...Ch. 12 - Prob. 4RQCh. 12 - Describe the process of DNA replication.Ch. 12 - How do mutations occur? Describe the principal...Ch. 12 - Prob. 1ACCh. 12 - Genetic information is encoded in the sequence of...
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- What are the components of a nucleotide? Provide 1- or 2-sentence description of each component.arrow_forwardWhat kind of bond do nucleotides use to form the DNA backbone?arrow_forwardA) Draw the structure and give the name of a nucleotide made of G + ribose. B) Write the complementary base sequence for the matching strand in the DNA section shown below.5’ – C T G T A T A C G T T A – 3’ Please answer both partsarrow_forward
- What are the three components of a nucleotide?Which component varies from one nucleotide to anotherin DNA?arrow_forwardA nucleotide is the monomeric building block of the polymer of DNA. To better understand the characteristics of DNA, it is important to understand how the monomers join to form the polymer. Use the following diagram of DNA (and the diagram of a nucleotide in the PowerPoint presentation) to label the listed features: 3' and 5' ends, nucleotide, phosphate group, sugar group, phosphodiester bond, nitrogenous base (pyrimidine and purine), and hydrogen bonds. NHZ NH2 HN OH₂N NH₂ 5. Looking at the polymer, why is a DNA considered antiparallel? 6. Why are the ends of DNA strands named 3' or 5'? 7. How do A:T interactions differ compared to G:C interactions? How does this affect stability of the bond pairs? 8. During gel electrophoresis, to which electrode (+ or -) does DNA migrate? Why?arrow_forwardDraw and identify the three parts of a DNA nucleotide.arrow_forward
- show the structure for nucleosides of DNA:arrow_forwardName the purines and pyrimidines in DNA and tell which pairs occur in the double helix. What are the purines and pyrimidines in RNA and to what are they complementary in DNA?arrow_forwardWhat are the different molecules making up a nucleotide?arrow_forward
- Determine three basic components of the nucleotide of DNA.arrow_forwardThe base content of a particular DNA molecule is 36% Thymine. What is the percentage of each of the following bases in the molecule?arrow_forwardDescribe, identify, and draw the components of nucleosidesand nucleotides.arrow_forward
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