Please explain how a fluorescent tag can be used to visualize protein localization in a cell.
In: Biology
1. Can the HPV vaccine cause infection? Explain 2. Many individuals have been infected with HPV. Why do all of these people not develop cervical cancer?
In: Biology
Briefly describe how each of the following groups of molecules is produced in cells; polysaccharides, lipids, amino acids, proteins, purines/pyrimidines
In: Biology
Briefly describe how tests detecting amino acid catabolizing enzymes, and fermentation tests can be used to identify microorganisms in the laboratory.
In: Biology
1)Describe the progression of a DIFFERENT bacterial, fungal OR protozoan microbial pathogen (causes disease) from acuteinfection to acuteinflammation to acutenecrosis to chronicinfection and chronicinflammation and chronicnecrosis.
(Virus assigned for this question is tuberculosis)
In: Biology
how to write an abstract of Microarray methods?
In: Biology
1. Why doesn't raw meat release liquid when sliced?
2. Why does cooked meat release liquid when sliced?
3. How does resting meat affect its tenderness? Why?
4. How does meat that is sliced immediately after cooking differ from meat that is allowed to rest for 40 minutes? What explains this difference? Which of these meats would be more tender? Why?
In: Biology
P.S. Please answer atleast 2 questions.
1. Explain the basic phases of the cell cycle and main checkpoints.
2. Understand how cycle time range varies in different cell types with specific examples.
3, Explain START in yeast and the restriction point in animal cells. Do these points of the cell cycle make sense?
4, Why are cyclins so important? Explain cyclins and cyclin-dependent protein kinases.
In: Biology
1. The mixed culture in an experiment was prepared by mixing overnight E. coli and S. aureus cultures in the ratio 2:8. However, there seemed to be more E. coli growth on the resulting streak plate than S. aureus growth. Explain this.
2. It was observed that some colonies of the same bacterial species appeared in different sizes on the streak plates. Give the possible reason for this.
3. Is it better to prepare pure culture in broth or on agar plate? Explain.
In: Biology
Bacteria, Archaea, Chloroplasts, and Mitochondria reproduce by binary fission. Explain why. (paragraph)?
In: Biology
1.Draw and label two cells at anaphase of mitosis and anaphase I of meiosis in a species having 2n = 4 chromosomes (one homologous pair of metacentric chromosomes and a pair of acrocentric chromosomes).
2.Sketch the cell cycle
In: Biology
What are some examples of cell survival signals?
What are some examples of cell death signals?
Stem cells Cloning: read therapeutic (SCNT) vs. reproductive cloning
iPs cells
In: Biology
1. Answer the following completely and in detail.
a) Draw, clearly label, and describe how binding of the trp corepressor to its repressor alters repressor function and transcription in E. coli.
b) Draw, clearly label, and describe the binding of RNA polymerase, repressors, and activators to the lac operon when both lactose and glucose are scarce. What is the effect of these scarcities on transcription of the lac operon?
c) Suppose that a certain mutation in E. coli changes the lac operator so that the active repressor cannot bind. How would this affect the cell's production of B-galactosidase?
THANK YOU!
In: Biology
1/ Could you think of a way to change the parameters in the life table, so that λ will never stabilize to a certain value? (Hint: a simple way to do so involves changing the values of mx).
2/ Among all the assumptions for the exponential growth model, which no longer hold true for the age-structured model?
In: Biology
In a cross of two flies +/vg Cy/+ +/se +/ab X +/vg +/+ se/se +/ab what proportion of the offspring will be mutant in phenotype for all four markers?
ANSWER: 1/64
Please explain the process
In: Biology