Present a detailed analysis on what observations can be made of Crepidual fornicata and Artemia. For each create a large labeled diagram.
In: Biology
6. Distinguish between single step selection and cumulative selection. e.g how long would it take to find the correct sequence of polypeptide that was 100 amino acids long? What is about cumulative selection that makes it so much more efficient at finding the correct sequence? How does the program demonstrating cumulative selection differ from the real process of natural selection? You should be able to come up with at least three differences.
In: Biology
Please solve the riddle, how can a virus encode a protein larger than the size of its genome?
In: Biology
You should know about autoclaves, what they do
and how they are important in the Microbiology
world.
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Draw the set of blood vessels that a red blood cell could use to get from the thorax to the palm of the hand. Now draw the veins that the same cell could use to return to the thorax. Which of the two drawing (arteries or veins) has more potential paths for the red blood cell to take? Why is this the case?
In: Biology
What are the differences in proteins, primers, and experimental procedures for the following PCR based experiments?
a. SYBR Green qRT-PCR
b. RAPD
c. Immuno qRT-PCR
d. PCR-OLA
e. Taqman Assay
In: Biology
In: Biology
1. Would a golfer benefit from a high-fat diet? Why or why not? Explain with reasoning.
2. Should he/she eat fat during their practices or competition? Why or why not? Explain with reasoning.
3. Should the athlete eat any fat in their diet? Explain.
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A successful cloning project of Dimetrodon has just been completed that resulted in several live and reproducing specimens of dimetrodons. Since Dimetrodons are early "stem-mammal members", a non-mammal that gave rise to the mammalian lineage, no one knows how it goes through development, similar to fish, amphibians, chickens, reptiles, mammals, or a new unique process altogether. You have been designed to lead the project to determine how gastrulation occurs in dimetrodons. You have decided to approach the problem by locating the equivalent of the Spemann organizer. Please design two different experiments that you will implement to determine where the organizer is located. For each experiment please include anticipated results, what the results would indicate, and possible difficulties that may occur during this experiment. (Money and Specimens are not a problem)
In: Biology
In: Biology
the statement is true or false and then explain why.
In a comparison between the DNAs os related organisms such as humans and mice, identifying the conserved DNA sequences facilitates the search for functionally important regions.
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Use these terms correctly to describe the process of digesting lactose from milk in lactose tolerant individuals: lactose, lactase, digestion, protein synthesis, transcription, translation, polypeptide chain, protein, disaccharide, monosaccharide, milk, mitochondria.
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Describe how the HeLa cell line was formed (biologically) and why it is significant in the history of biomedical research.
In: Biology
ENZYMES DATA ANALYSIS WORKSHEET
Results:
Table 5.1 - Catalase Activity
Tube |
# Contents |
Bubble Column Height (mm) |
1 |
catalase/H2O2 |
27mm |
2 |
dH2O/H2O2 |
0mm |
3 |
catalase/sucrose |
0mm |
Table 5.2 - Effect of Temperature
Tube # |
Temp. (ºC) |
Bubble Column Height (mm) |
1 |
0 |
16mm |
2 |
25 |
14mm |
3 |
37 |
4mm |
4 |
100 |
1mm |
Table 5.3 - Effect of Enzyme Concentration & Time
Tube # |
Amt. of Enz. |
Bubble Column Height (mm) after 20 sec. |
Bubble Column Height (mm) after 2 min. |
1 |
0 ml |
0 |
0 |
2 |
1 ml |
15mm |
10mm |
3 |
3 ml |
12mm |
24mm |
Table 5.4 - Effect of pH
Tube # |
pH |
Bubble Column Height (mm) |
1 |
3 |
4mm |
2 |
6.6 |
0 |
3 |
11 |
0 |
EFFECT OF pH:
1. Bubble height indicates the degree of enzyme activity. Based on the results of your experiment, which tube
had the highest bubble column height? What can you conclude about this pH?
2. Explain the results of the other two tubes. What is your conclusion concerning the effect of pH on enzyme
activity?
EFFECT OF ENZYME CONCENTRATION & TIME:
1. What is your conclusion concerning the effects of enzyme concentration and time on enzyme activity?
2. If unlimited time was allotted, would the results be the same in all tubes? Explain your answer.
ERRORS:
1. List two types of errors that could have occurred during this lab. Explain how they could have affected the
outcome of your experiments.
2. Were you surprised by any of the results you obtained in this lab? If so, what did you see and why do you
think it happened?
In: Biology
In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+), and the gene for this trait is located on an autosome. The gene for the white-eye trait is on the X chromosome. Suppose a homozygous white-eyed, long-winged female fly is crossed with a homozygous red-eyed, vestigial winged male.
. What are the expected genotypes, phenotypes and their ratios in the F1 flies?
P1 white, long females: ______________ X P2 red, vestigial males: ___________________
F1 genotypes: _______________________________________________________________
F1 phenotypes: _______________________________________________________________
2. What are the expected genotypes, phenotypes and their ratios in the F2 flies?
F1 females: _____________________ X F1 males: __________________________
3. What are the expected genotypes and phenotypes, and the ratios of each of the progeny resulting from a cross between F1 flies back to each parent?
F1 female: _____________________ X P2 red, vestigial male: __________________________
F1 male: _____________________ X P1 white, long female: __________________________
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