Essentials of Genetics (9th Edition) - Standalone book
9th Edition
ISBN: 9780134047799
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 9, Problem 30PDQ
Summary Introduction
To review:
The following:
(a) To propose a general model of the molecule by the given information, and its description.
(b) Base-pairing properties for H and X in the model.
(c) To determine whether both H and X are purines or both pyrimidines, or one is a purine and one is a pyrimidine.
Introduction:
DNA (Deoxyribonucleic Acid) is a double helix structure that contains the genetic instructions in almost every organism. The two helices or strands of DNA are a
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One of your patients, a six-year-old girl who suffers from Sickle cell anemia, an inherited blood disorder in which red blood cells are abnormally shaped and fragile, leading to a short supply of red blood cells. These abnormal cells can also get stuck in small vessels, which prevent blood flow, leading to fatigue, pain and other severe complications.
What molecules make up each single peptide?
Deoxynucleotides (dNTPs)
Nucleotides (NTPs)
Amino acids
DNA
RNA
This figure is an example of a(n) _________.
Ο Η Η Η Η Η Η Η Η Η Η Η
|||||||||||||
HO-C-C-C-C-C-C-C-C-C-C-C-C-H
...........
Η Η Η Η Η Η Η Η Η Η Η
polypeptide
nucleic acid
saturated fatty acid
unsaturated fatty acid
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
Chapter 9 Solutions
Essentials of Genetics (9th Edition) - Standalone book
Ch. 9 - CASE STUDY |Zigs and zags of the smallpox virus...Ch. 9 -
CASE STUDY | Zigs and zags of the smallpox...Ch. 9 - CASE STUDY | Zigs and zags of the smallpox...Ch. 9 - CASE STUDY | Zigs and zags of the smallpox virus...Ch. 9 -
HOW DO WE KNOW?
1. In this chapter, we have...Ch. 9 - Review the Chapter Concepts list on p. 160. Most...Ch. 9 - Discuss the reasons why proteins were generally...Ch. 9 -
4. Contrast the various contributions made to our...Ch. 9 - When Avery and his colleagues had obtained what...Ch. 9 - Why were 32P and 35S chosen in the Hershey–Chase...
Ch. 9 - Does the design of the Hershey-Chase experiment...Ch. 9 - What observations are consistent with the...Ch. 9 - What are the exceptions to the general rule that...Ch. 9 -
10. Draw the chemical structure of the three...Ch. 9 - How are the carbon and nitrogen atoms of the...Ch. 9 - Adenine may also be named 6–amino purine. How...Ch. 9 -
13. Draw the chemical structure of a dinucleotide...Ch. 9 - Describe the various characteristics of the...Ch. 9 - Prob. 15PDQCh. 9 - What might Watson and Crick have concluded, had...Ch. 9 - Prob. 17PDQCh. 9 - Prob. 18PDQCh. 9 - Prob. 19PDQCh. 9 - Prob. 20PDQCh. 9 - Prob. 21PDQCh. 9 - Prob. 22PDQCh. 9 -
23. Why is Tm related to base composition?
Ch. 9 - What is the chemical basis of molecular...Ch. 9 - What did the Watson–Crick model suggest about the...Ch. 9 - A genetics student was asked to draw the chemical...Ch. 9 - Prob. 27PDQCh. 9 -
28. One of the most common spontaneous lesions...Ch. 9 - Prob. 29PDQCh. 9 - Prob. 30PDQCh. 9 - Prob. 31PDQCh. 9 -
32. During electrophoresis, DNA molecules can...Ch. 9 - Assume that you are interested in separating short...
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- The following define nucleic acids EXCEPT A) They are polyionic molecules of high molecular weight composed of subunits or monomers called nucleosides. B) They are chainlike macromolecules that function in the storage and transfer of genetic information. C They are polynucleotides. They contain genes that encode for polypeptides and RNAS.arrow_forwardCells 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.arrow_forwardLactose sugar is hydrolyzed to produce two monosaccharides.(ii) Why can't we store Vitamin C in our bodies?The distinction between a nucleoside and nucleotide is explained in (iii).arrow_forward
- Section B: True / False The diagram shows an amino acid in L-configuration. NH, 1. H- CO,H CH,OH This sugar can be found in DNA. ҫнон он 2. но CH,OH 3. Base pairing can be found between two purines in DNA. The relation between the following two sugars is epimers. сно сно но C-OH HCOH OH но C-H HC он HC- он он он CH,OH CH,OHarrow_forwardSelect all of the true statements regarding the molecule below: NH2 NH OH NH, H,N ОН `NH ОН ОН ОН O This is RNA O This is DNA This chain is a polymer. O The backbone of these nucleotides is a ribose sugar O This nucleic acid is the hereditary material for humans. O This nucleic acid is the hereditary material for coronaviruses. O This type of nucleic acid is never found in healthy human cells. O This nucleic acid contains the nucleobase thymine.arrow_forwardRNA differs from DNA in that: a) The ribose in RNA nucleotides contains fewer oxygen atoms than does deoxyribose DNA nucleotides. b) It is always single stranded and cannot form base pairs. c) It contains the nucleotide uracil, which pairs with thymine. d) It is single-stranded but can fold into a variety of structures, some of which are double-stranded. e) RNA can only be found in the cytoplasm whereas DNA can only be found in the nucleus.arrow_forward
- All nucleoside contain ribosearrow_forwardThe human eye is a remarkable organ. It forms a high-resolution image by focusing light through a transparent lens made of living tissue. The lens is made up largely of proteins called crystallins. Where did they originate?arrow_forwardDna is composed of a phosphate back bone, a sugar and four nitrogenous bases. Of the following bases: adenine, cytosine, guanine, and thymine; which are the hydrogen bond donors and which are the acceptors?arrow_forward
- You work in the area of cardiovascular biology. You have administered a cardio-protective drug to mouse in order to study its toxicity to other organs of the body. After collecting different samples from the treated mouse including urine, you found that urine sample from drug treated mice contain a large quantity of protein. Based on the knowledge you have gained in this course, what do you think might have happened to these mouse? Be very specific in your answer and also justify.arrow_forwardIntramolecular ______ are responsible for formation of the most common three-dimensional shape in proteins, the alpha helix. a) van der waals forces b) hydrogen bonds c) covalent bonds d) ionic (electrostatic) interactionsarrow_forwardThe protein hemoglobin, consisting of four polypeptides (two a-globin chains, with 141 amino acids each, and two b-globin chains, with 146 amino acids each), contains how many peptide bonds? 570 peptide bonds 571 peptide bonds 572 peptide bonds 573 peptide bonds 574 peptide bondsarrow_forward
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