CONNECT WITH LEARNSMART FOR COWAN: MICR
3rd Edition
ISBN: 2818440123740
Author: Cowan
Publisher: MCG
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Chapter 8, Problem 15Q
Metagenomics is providing insight into the possible causes of some difficult to understand diseases, such as irritable bowel syndrome. Develop a possible explanation for why metagenomic approaches might be better than traditional diagnostic approaches.
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A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin
Chapter 8 Solutions
CONNECT WITH LEARNSMART FOR COWAN: MICR
Ch. 8.1 - Define the terms genome and gene.Ch. 8.1 - Differentiate between genotype and phenotype.Ch. 8.1 - Draw a segment of DNA, labeling all important...Ch. 8.1 - Summarize the steps of bacterial DNA replication,...Ch. 8.1 - Compare and contrast the synthesis of leading and...Ch. 8.1 - Prob. 1NPCh. 8.2 - Provide an overview of the relationship among DNA,...Ch. 8.2 - Identify important structural and functional...Ch. 8.2 - Draw a picture of the process of transcription.Ch. 8.2 - List the three types of RNA directly involved in...
Ch. 8.2 - Prob. 10AYPCh. 8.2 - Identify the locations of the promoter, the start...Ch. 8.2 - Indicate how eukaryotic transcription and...Ch. 8.2 - NCLEX PREP 2. The following are all true of RNA,...Ch. 8.2 - Prob. 3NPCh. 8.3 - Define the term operon, and explain one advantage...Ch. 8.3 - Prob. 14AYPCh. 8.4 - Prob. 15AYPCh. 8.4 - Prob. 16AYPCh. 8.5 - Prob. 17AYPCh. 8.5 - Differentiate among frameshift, nonsense, silent,...Ch. 8.5 - Prob. 19AYPCh. 8.5 - Prob. 1MMCh. 8.6 - Explain the importance of restriction...Ch. 8.6 - List the steps in the polymerase chain reaction.Ch. 8.6 - Describe how you can clone a gene into a...Ch. 8.6 - Prob. 23AYPCh. 8.6 - Prob. 24AYPCh. 8.6 - Name two genetic techniques that are designed to...Ch. 8.6 - NCLEX PREF 4. A client is being treated with...Ch. 8.6 - Prob. 2MMCh. 8 - Single nucleotide polymorphisms are found in a....Ch. 8 - Using your knowledge of DNA from this chapter,...Ch. 8 - Conduct research on CRISPR and explain in...Ch. 8 - Which of the following is a characteristic of RNA?...Ch. 8 - List some advantages and disadvantages to a cell...Ch. 8 - Construct an argument for why tRNA contains a lot...Ch. 8 - Prob. 7QCh. 8 - Discuss the intersection between the metabolome...Ch. 8 - Defend this statement: All of biology is dependent...Ch. 8 - DNA is semiconservative because the ______ strand...Ch. 8 - Examine the DNA triplets here and determine the...Ch. 8 - Prob. 12QCh. 8 - Prob. 13QCh. 8 - Prob. 14QCh. 8 - Metagenomics is providing insight into the...Ch. 8 - The creation of biological molecules and cells...Ch. 8 - Prob. 17QCh. 8 - Genetically modified organisms (GMOs)especially in...Ch. 8 - Prob. 19QCh. 8 - Construct an analogy using your clothes closet to...Ch. 8 - Prob. 21QCh. 8 - Prob. 1VC
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- With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forward
- During a routine medical check up of a healthy man it was found that his haematocrit value was highly unusual – value of 60%. What one of the options below is the most likely reason? He will have a diet high in iron. He is likely to be suffering from anaemia. He lives at high altitude. He has recently recovered from an accident where he lost a lot of blood. He has a very large body size.arrow_forwardExplain what age of culture is most likely to produce an endospore?arrow_forwardExplain why hot temperatures greater than 45 degrees celsius would not initiate the sporulation process in endospores?arrow_forward
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8C - How to do genetic analysis; Author: Useful Genetics;https://www.youtube.com/watch?v=HIa7nPyGn4s;License: CC-BY