(1) Answer the three questions for each of the following transcription factors:
LacR
TrpR
CAP
GAL4
GR (glucocorticoid receptor)
(a) What is the small molecule that controls its’ activity?
(b) In the presence of this molecule, is the protein on the DNA or off the DNA?
(c) What is the consequence for transcription?
(2) Fill out the table with the words ON or OFF:
|
- lactose: lac repressor ON or OFF the DNA |
- lactose: lacZ ON or OFF |
+ lactose: lac repressor ON or OFF the DNA |
+ lactose: lacZ ON or OFF |
|
|
I+ O+ Z+ |
||||
|
I- O+ Z+ |
||||
|
I+ Oc Z+ |
||||
|
I+ O+ Z+ / Oc |
||||
|
I+ O+ Z+ / I- |
||||
|
I- O+ Z+ / I+ |
||||
|
I+ Oc Z+ / O+ |
(3) Answer the three questions for each of the following enzymes:
Swi/Snf
HAT
HDAC
DNMT
(a) Describe the activity of each of the enzymes.
(b) What is the consequence of this enzyme activity?
(c) How does this enzyme know what genes to act on?
In: Biology
1. An isolated population of chimpanzees was discovered on an island. Biochemical studies show that 1 out of 9 chimpanzees in this population are homozygous for a mutation in the gene encoding the enzyme, hexokinase. This mutation completely inactivates the enzyme so that no activity is detected in the blood. A female who exhibits hexokinase activity mates with a male who is a carrier of the hexokinase mutation. What is the probability that their first baby chimpanzee will be homozygous for the hexokinase mutation? Assume that the population is in Hardy-Weinberg equilibrium.
2. Cystic fibrosis is an autosomal recessive, fully penetrant trait in humans. A man who is unaffected by cystic fibrosis has two unaffected parents and a sister with cystic fibrosis. The man plans to marry a healthy woman, who was adopted and has no knowledge about her biological parents except that they are both Caucasian. The frequency of cystic fibrosis in the Caucasian population is 1/2500. Assuming that this population is in Hardy-Weinberg equilibrium for the CF gene, what is the probability that this couple's first child will have cystic fibrosis?
In: Biology
14. How does Coronavirus infect the lung tissue?
A. The S-spike protein binds to Angiotensin Converting Enzyme 2 on Type 2 alveolar cells, leading to its destruction, a reduction in surfactant and Coronavirus replication .
B. The S-spike protein binds to Angiotensinogen on Type 2 alveolar cells, leading to its destruction, a reduction in surfactant and Coronavirus replication .
C. The S-spike protein binds to Angiotensin Converting Enzyme 2 on Type 1 alveolar cells, leading to its destruction, a reduction in surfactant and Coronavirus replication .
D. The S-spike protein binds to Angiotensinogen on Type 1 alveolar cells, leading to its destruction, a reduction in surfactant and Coronavirus replication .
17. Bacteria found in our colon has the following roles EXCEPT:
A. Metaboloze undigested food, causing Gas
B. Production of Vitamin K
C. Production of Bile
D. Microbial Antagonism
In: Anatomy and Physiology
In: Biology
A mouse gene was identified and determined to be required for formation of heart muscle. A gene with a similar sequence was identified in the human genome. What experiment could scientists do to determine if the mouse and human genes have similar functions?
The scientist could place the normal human gene into normal mice and see if the resulting mice are viable.
The scientist could search the human genome for genes that encode proteins that are identical to the protein encoded by the mouse gene.
The scientist could place the normal human gene into mutant mice to see if heart muscle forms in the mouse.
The scientist could place the mutant mouse gene into humans to see if humans develop without heart muscle.
In: Biology
This week you learned about the evolution of human resource management, the importance of human resources to an organization, and some of the emerging issues facing human resource professionals today. Your goal is to convince the key decision makers at the company to hire you to work on a human resource project.
Your assignment this week is to prepare your credentials for the proposal. Include the following in your paper:
1-2 paragraphs outlining why you think human resource management is important.
1-2 paragraphs highlighting your accomplishments, the unique skills you bring to the project, and what makes you stand out from the other consultants applying to work on the project.
In: Operations Management
Code the game of Rock, Paper, Scissors between a human player and the computer. You can check out the game on Wikipedia if you are not familiar with it. Create a 4 option menu with the human player choices, plus the option of exiting the game. Randomly determine the computer’s choice (although a great deal of AI research has gone in to determining the best computer move).
• Loop the game until the human player exits.
• Count the number of times the computer and the human each won.
When you’re done, display the total number of hands played, the number of times the human won and the number of times the computer won. Declare the highest total of winning hands the game winner.
In: Computer Science
In: Nursing
True or False:
1. In an individual human, the pattern of gene expression is identical across all different types of somatic cells
2. The stem cell potential of a fertilized human egg is pluripotent
3. In an individual human, different types of somatic cells have the same genome.
In: Anatomy and Physiology
1. Evaluate the double integral for the function f(x,y) and the given region R.
R is the rectangle defined by
-2 x 3 and
1 y e4
2. Evaluate the double integral
| f(x, y) dA | |
| R |
for the function f(x, y) and the region R.
f(x, y) =
| y |
| x3 + 9 |
; R is bounded by the lines
x = 1, y = 0, and y = x.
3. Find the average value of the function f(x,y) over the plane region R.
f(x, y) = xy; R is the triangle bounded by y = x, y = 2 - x, and y = 0
4. Verify that y is a general solution of the differential equation and find a particular solution of the differential equation satisfying the initial condition.
y =
| 1 |
| x2 − C |
;
| dy |
| dx |
= −2xy2; y(0) = 7
In: Advanced Math