Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 12, Problem 2RQ
Draw the general structure of a
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What are the components of a nucleotide? Provide 1- or 2-sentence description of each component.
What is the definition of a nucleotide? What will you get if you hydrolize a nucleotide?
Which statement is true concerning the nucleotide shown below?
The base is a purine and the sugar is ribose.
The base is a pyrimidine and the base is ribose.
The base is a pyrimidine and the sugar is deoxyribose.
The base is a purine and the sugar is deoxyribose.
Chapter 12 Solutions
Biology: Life on Earth (11th Edition)
Ch. 12 - 1. If a parental DNA strand has the base sequence...Ch. 12 - 2. What happens at the conclusion of DNA...Ch. 12 - An insertion mutation occurs when a nucleotide is...Ch. 12 - The rungs of the DNA double helix consist of any...Ch. 12 - The “rungs” of the DNA double helix are held...Ch. 12 - 1. DNA consists of subunits called_________. Each...Ch. 12 - The subunits of DNA are assembled by linking...Ch. 12 - The “base pairing rule” in DNA is that adenine...Ch. 12 - 4. When DNA is replicated, two new DNA double...Ch. 12 - The DNA double helix is unwound by an enzyme...
Ch. 12 - 6. Sometimes mistakes are made during DNA...Ch. 12 - Describe the experimental evidence that DNA is the...Ch. 12 - 2. Draw the general structure of a nucleotide....Ch. 12 - Describe the structure of DNA. Where are the...Ch. 12 - How is information encoded in the DNA molecule?Ch. 12 - 5. Describe the process of DNA replication.
Ch. 12 - How do mutations occur? Describe the principal...Ch. 12 - 1. In an alternate universe, although proteins are...Ch. 12 - Prob. 2AC
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- Name the bases in the pentanucleotide with the sequence G-A-U-C-A. Does this come from RNA or DNA? Explain.arrow_forwardProvide a complete name for a nucleotide that consists of thymine, deoxyribose, and three phosphatesarrow_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
- If the GC content of a DNA molecule is 60%, what are the molar percentages of the four bases (G, C, T, A)?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_forwardDescribe 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?arrow_forward
- How many combinations of DNA bases are for a polynucleotide of 7 base pairs in length?arrow_forwardName the four nitrogenous bases that form a DNA molecule.arrow_forwarddraw a picture of a SINGLE strand of DNA (a polynucleotide) composed of 9 (nine) nucleotides of your choice. Do use ALL 4 nucleotides. Use 3 simple symbols to represent the phosphate, the sugar, and the base in each nucleotide. For example, use a circle with the letter “P” for the phosphate in the backbone, a square with the letter “S” for the sugar in the backbone, and a triangle with the letter “A, T, C or G” for the bases.As you draw the diagram be sure to put solid lines for the covalent bonds you are creating to join new nucleotides to the elongating DNA chain.arrow_forward
- name the The components of a nucleotidearrow_forwardUsing the figure below, clearly identify which numbered component corresponds}to a purine, a pyrimidine, a sugar, a phosphate, and hydrogen bonds. Additionally, please list the three components of a nucleotide. For 1 bonus point, which of the base pairs (C-G or A-T) require more energy to break apart? Briefly explain your answer.arrow_forwardDescribe, identify, and draw the components of nucleosidesand nucleotides.arrow_forward
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