Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 2CAE
The drug Hivid, also called ddC, inhibits DNA synthesis. It is used to treat HIV infection and AIDS. Compare the following illustration of ddC to the structure of DNA
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Sketch a pyrimidine nucleotide subunit that would be found only in RNA. Circle and label the three components that make up this type of nucleotide. Explain what changes in the functional groups of this subunit would have to occur for it to be found in a DNA molecule.
Which of the following is correct regarding nucleotide structure?
Removal of the ribose-phosphate groups from thymidylic acid or thymidylate yields thymidine
Removal of the ribose-phosphate groups from cytidine yields cytosine
Removal of the phosphate group from guanylic acid or guanylate yields guanine.
Removal of the phosphate group from adenylate or adenylic acid yields adenosine
Which of the following are TRUE for RNA compared to DNA? Please select ALL correct answer options.
Select 4 correct answer(s)
Question 6 options:
RNA contains the bases A, G, C, and U, whereas DNA contain the bases A, G, C, and T.
RNA can catalyze biological reactions, but DNA cannot.
DNA but not RNA can bind proteins
RNA has ribose sugar in its nucleotides, rather than the deoxyribose found in DNA.
RNA is usually single stranded and can make more complex three-dimensional molecular shapes than double-stranded DNA.
Chapter 5 Solutions
Microbiology: An Introduction
Ch. 5 - Prob. 1RCh. 5 - DRAW ITUsing the diagrams below, show each of the...Ch. 5 - DRAW IT An enzyme and substrate are combined. The...Ch. 5 - Define oxidation-reduction, and differentiate the...Ch. 5 - There are three mechanisms for the phosphorylation...Ch. 5 - All of the energy-producing biochemical reactions...Ch. 5 - Fill in the following table with the carbon source...Ch. 5 - Write your own definition of the chemiosmotic...Ch. 5 - Why must NADH be reoxidized? How does this happen...Ch. 5 - NAME IT What nutritional type is a colorless...
Ch. 5 - Which substance in the following reaction is being...Ch. 5 - Which of the following reactions produces the most...Ch. 5 - Prob. 3MCQCh. 5 - Which of the following compounds has the greatest...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Which culture produces the most lactic acid? Use...Ch. 5 - Which culture produces the most ATP? Use the...Ch. 5 - Which culture uses NAD+? Use the following choices...Ch. 5 - Which culture uses the most glucose? Use the...Ch. 5 - Explain why, even under ideal conditions,...Ch. 5 - The following graph shows the normal rate of...Ch. 5 - Compare and contrast carbohydrate catabolism and...Ch. 5 - How much ATP could be obtained from the complete...Ch. 5 - The chemoautotroph Acidithiobacillus can obtain...Ch. 5 - Haemophilus influenzae requires hemin (X factor)...Ch. 5 - The drug Hivid, also called ddC, inhibits DNA...Ch. 5 - The bacterial enzyme streptokinase is used to...
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- Give typed explanationarrow_forwardWhen comparing the structures of RNA and DNA , which of the following statement is True?A-Only RNA contains 3'-deoxyribise rings B-Both RNA and DNA contain 3'-deoxyribise rings C-Only DNA contains 3'- deoxyribise rings D-Neither RNA or DNA contain 3'-deoxyribise ringsarrow_forwardDraw the chemical structure of a molecule of adenosine triphosphate. Include labels to indicate the names of its different components.arrow_forward
- Using the DNA figure below to identify structures of the following letters: A= B= C= D= E= F: Circle a nucleotide for each backbone strand A B A G G A E Tarrow_forwardUse the following information to answer the next question. The DNA strand shown below is thought to contain the genetic code for part of an enzyme B-galactosidase which is involved in lactose metabolism. (Read the DNA beginning at the left.) -A-T-A-T-G-G-G-G-C-A-T-G The second amino acid coded from the section of DNA for B-galactosidase is Select one: a. thymine b. tryptophan c. serine d. threoninearrow_forwardTwo highly negatively charged complementary strands of DNA come together to form a double helix. What prevents them from repelling each other?arrow_forward
- Choose any pentapeptide composed of five different amino acids. List the amino acids. Present one messenger RNA codon for each amino acids and the sequence of nucleotides on the DNA that originally coded for your pentapeptide.arrow_forwardName the bases in the pentanucleotide with the sequence G-A-U-C-A. Does this come from RNA or DNA? Explain.arrow_forwardDraw the DNA and RNA models in Figure 1 in the space provided. Use the legend below to represent the colored plastic chips with letters. Use lines to connect the letter representations of the plastic chips according to how they are attached to each other in Figure 1. These lines represent thechemical bonds between the different nucleic acid subunits. In the case of hydrogen bonds, specify the number of bonds such that one horizontal line corresponds to one hydrogen bond. Label the 5’ and 3’ ends of your polynucleotide strands. Br brown O orange B blue P pinkW white G green Y yellow R red Structure of Genetic Material DNA RNAarrow_forward
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