1. What are the characteristics of a virus and how do they reproduce? Be sure to explain in detail. 2. How do antiviral medications affect viruses? Be sure to explain in detail. 3. List the different ways that viruses may be transmitted from an infected person? 4. List ways to minimize transmission of viruses to another individual? 5. How does host resistance and microbial virulence affect the following: A patient's ability to fight the infection The ability of the treatment to reduce symptoms and/or length of time of the illness The ability of the virus to spread? Be sure to explain each part of this question in detail.
In: Nursing
Please explain in extensive detail what happens to the value of the dollar if the European Central Bank (ECB) does quantitative tightening to the money supply? How will this impact the value of the dollar, exports and imports, AD and GDP? Please provide a graph explaining your reason.
In: Finance
Question 4)
a) Explain in some detail the meaning of thermal radiation. Your answer should include the difference between radiation from other forms heat transfer.
b) What is the stefan-Boltzmann law. How does this relate to the heat transfer by radiaion?
In: Mechanical Engineering
What is the difference between ordinary income ans statutory income pursuant to the ITAA97 and ITAA36? Explain your answer in detail and refer to relevant case law, ATO Guidance in the form of Tax Rulings as well as to the relevant legislative provisions contained in ITAA97 and ITAA36.
In: Accounting
To learn a bit more about the outcome of mutation, leave the “More about DNA and Genes” section and check out one of the examples in “More about Mutation” and then “The Outcome of Mutation” Pick one of the examples and explain to me what happened
Now watch a video about making and using RNA under “More about Proteins” and “Transcribe and Translate a Gene”.
This process relies on DNA and three types of RNA, under “More about RNA” and then “RNA’s role in the Central Dogma” give me a description of the following
DNA
mRNA
tRNA
rRNA
Finally, put it all together. Explore “How a firefly’s tail makes light” under “More about Proteins” and tell me, starting at the gene and ending at the chemical reaction, how does a firefly make light?
In: Biology
Chapter 6
Chapter 7
In: Operations Management
Problem 2
You cross a true-breeding yellow-bodied, smooth-winged female fly with a true-breeding red-bodied, crinkle-winged male. The red body phenotype is dominant to the yellow body phenotype and smooth wings are dominant to crinkled wings. Use B or b for body color alleles, and W or w for wing surface alleles.
a) What are the genotypes of the P generation flies?
b) What will be the genotype(s) and phenotype(s) of the F1 offspring?
c) You discover that the genes for body color and wing surface are linked. You perform a dihybrid test crossbetween the F1 flies from part (b) with a true-breeding yellow-bodied, crinkle-winged fly. Use the followingF2 results to determine the recombination frequency (%) between the body color and wing surface genes. (Remember that the recombinants are the ones that do not resemble the parental types from the P generation.)
|
Body Color |
Wing Surface |
# of Individuals |
|
red |
smooth |
102 |
|
yellow |
smooth |
404 |
|
red |
crinkled |
396 |
|
yellow |
crinkled |
98 |
You decide to turn your attention to a different gene, one that controls wing length. This gene has two alleles, "L orl" where long wings are dominant to short wings. Remember that the red body phenotype is dominant to the yellow body phenotype. You again mate two true-breeding flies:
P: red-bodied, short wing male X yellow-bodied, long wing female
F1: All red-bodied, long wing
d) You perform a test cross between the F1 flies above with true-breeding yellow-bodied, short-winged flies. You get the following F2 results. What is the recombination frequency (%) between the genes for body color and winglength?
|
Body Color |
Wing Length |
# of Individuals |
|
red |
long |
45 |
|
red |
short |
460 |
|
yellow |
long |
440 |
|
yellow |
short |
55 |
e) Based on the information in (c) and (d), what are the two possible arrangements of these three genes: bodycolor, wing surface and wing length? Draw two linkage maps to show the possible arrangements of thesegenes and the map distance between genes.
In: Biology
Associated Grocery Stores (AGS) has always used paper bags for sacking groceries in its chain of retail supermarkets. Management has noticed that some competitors are offering reusable bags to their customers. AGS management isn’t certain just how strongly consumers in its markets feel about having to bring the reusable bags every time they visit the supermarket. Select two projective techniques. First, defend your use of a projective technique. Second, describe in detail how your two chosen techniques would be applied to this research problem.
In: Finance
List the following elements in order of highest electronegativity to lowest: silicon, sulphur, argon, chlorine.
Answer the following questions about water: (10 marks total)
In a single molecule of water (H2O), what kind(s) of bonds(s) are present?
Explain how these bonds contribute to the high surface tension of water.
Explain why water has a high specific heat and explain why this is important to life.
A baking soda solution has a pH of 8. (5 marks total)
Is it acidic, basic, or neutral? Why?
Is it an acid, a base, or neither? Why?
What is the concentration of hydrogen ions in baking soda? (1 mark)
Compare and contrast the following: (4 marks each, total 16 marks)
Starch and glycogen
Phosphodiester bonds and peptide bonds
Chemical energy and heat
Hypothesis and null hypothesis
For the theory of evolution identify the pattern component and the process component.
Read the section in your textbook Canadian Research 1.1: Artificial Selection on Bighorn Sheep in Alberta. Using specific examples from this study, outline the steps of the scientific method. (Note that the reading may not include all the steps. For any “missing” steps, include what would have been the case.)
Answer the following questions about enzymes: (15 marks total)
Briefly describe how enzymes catalyze reactions
List 4 factors that affect enzyme activity. For each factor explain how the factor works to alter reaction rate.
The tertiary structure of proteins involves interactions with the amino acid side chains (the R groups). List the types of interactions and explain the role of the functional groups involved .
Compare and contrast the structure and function of DNA and RNA.
Explain why the components of phospholipids contribute to the formation of lipid bilayers.
Explain why carbohydrates have high free energy.
Discussion
Based on what you have learned so far, consider one of the following questions. Post your ideas to the Discussions area first, and then read and respond to other students’ postings. The Discussions area is in the left-hand navigation menu of this course.
Self-Replicating Molecules
Your textbook states that the ability of molecules to self-replicate is an indicator that these molecules are “living entities”. Should self-replication be the only indicator of life? Why or why not?
Origins of Life
Up to date RNA has been the only molecule directly associated with the origin of life and early evolution of life on Earth.
In your own words explain how researchers came to this conclusion. Do you find their arguments convincing? Why or why not? Prior to answering this question, make sure you read Chapter 4, Section 4.4, The First-Life Form.
In: Biology
When calculating the concentration of a diluted solution, a person can use the dilution equation: Mc Vc = Md Vd
Why does Mc Vc equal Md Vd ? What is this mathematical statement saying? Why would losing some concentrated solution from the pipet during the preparation stage ruin this equation? Explain in detail.
In: Chemistry