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Multiple Slides samples observations on a Microscope device.
Is it possible to design & construct a Microscope (optical or Electron) which can take multiple slides samples instead of a single sample slide at a time?.
Possible construction of the Sample Slides target is a circular disc holding say 5-10 sample slides.
I.e. Different chambers for samples been observed with the Light or Electrons focussed on all t
Is there any correlation between a cell's energy usage and its best performance? Perhaps it will accomplish cell death better with higher energy levels versus sticking around when sickly? Otherwise live and do its job better with fewer compromises due to maximum energy usage?
Describe the characteristics of the tumour-suppressor gene Rb, including:
(i) the function in the cell cycle of the protein it encodes. (6 marks) (ii) the specific cancer caused by loss of its function. (4 marks) (iii) the differences between the familial and sporadic forms of this disease. (4 marks) (iv) the characteristics that make it a typical
Gene etoh-1 is induced in yeast cells when treated with high levels of ethanol. A mutation in region 1 located in the upstream cis acting regulatory region of etoh-1 results in high-level RNA transcription, and a mutation in region 2 results in increase in transcription. How are the regions functioning normally in yeast to regulate gene expression? In other words, how are the m
Do you feel it will be highly beneficial to have CCTV cameras installed in all Microbiology Labs in the COVID-19 times?
As the COVID vaccines are already developed, the research & development carried further in studying and analysing the COVID-19 variants by the Vaccinologists would be captured in real time on the Video monitors in the Pathology labs.
Question 1: What I mean by this is that when we plate bacteria with say bacteriophage, we sometimes see plaques. I keep hearing that one bacteriophage generated the plaque, but it this often the situation? I find it hard to believe that just one bacteriophage makes it per plaque, because when you spray a sample on it, there's going to be many there right?
At the site of membrane fusion between an insulin secretory vesicle and the plasma membrane one ...
True or false: At the site of membrane fusion between an insulin secretory vesicle and the plasma membrane one would expect to see the aggregation of phosphatidylethanolamine caused by the release of intracellular calcium and the formation of a no bilayer hemifusion intermediate.
A patient with skin lesions and extreme sensitivity to UV visits a doctor. A skin biopsy is performed and genomic DNA is isolated and sequenced for Xeroderma Pigmentousum gene mutations. The results indicate a mutation in XPA gene, which consists of 7 exons and 6 introns. This patient has a mutation that occurs at the 5' splice site of exon 2. 1) Draw the pre-RNA including
Plant cells are quite different from the cells of the other eukaryotic kingdom's organisms. Their distinctive features are: A large central vacuole (enclosed by a membrane, the tonoplast), which maintains the cell's turgor and controls movement of molecules between the cytosol and sap.
A cell wall made up of cellulose and protein, and in many cases lignin
There are two competitive categories of designs for the transformative source of the eukaryotic flagella . Endogenous, autogenous and quick filiation's models: These designs claim that cilia developed from pre-existing components of the eukaryotic cytoskeleton "which has tubulin and dynein, also used for other functions" as a
Is this a stupid question but do DNA Primers dissociate after PCR?
In a normal PCR reaction do the DNA PCR primers dissociate after DNA polymerase has passed the origin of replication?... Does this mean that you can use the same forward primer for sequencing as for amplification?
A Mammalian cell (permeable to Na+, K+, Cl-, with the usual distribution of ions) has the following values for ionic equilibrium potentials: ENa=+60 mV, EK = -80 mV and Ec1 = -85 mV. What is the initial direction of movement of each ion (i.e. from outside to inside or vice versa) if the membrane potential is suddenly shifted (this can be done experimentally by i
When a chemist titrates a standard solution of 450 mL of hydrocyanic acid (HCN) with 0.251 M potassium hydroxide (KOH) , she finds that it requires 462.4 mL of the base to reach the endpoint of the titration. What is the molarity of the acid solution ?
The lately elucidated archaeal flagella is similar, not homologous, to the microbe one. Moreover to no series likeness being recognized between the genetics of the two techniques, the archaeal flagellaseems to develop at the platform rather than the tip, and is about 15 nanometers (nm) across rather than 20. Sequence evaluation indicates that the archaeal flagella is homologous to K
The following figure shows the solute composition of a cell and its extracellular fluid.
The following figure shows the solute composition of a cell and its extracellular fluid. Question mark (Neutral Face) represents unknown concentrations. Question mark (Neutral Face) represents unknown concentrations.
a. What is the concentration of K+ inside the cell? b. if the cell is in the steady state, what concentration of non-electrolyte must be present o
Which of the following images makes the best argument for recombination?
Alleles of many different genes have been implicated in inheritance of a predisposition to skin cancer. Two are BAP1 located at 3p21and CDKN2a located at 9p21. Consider a man who has two different alleles of BAP1 (call them A and B) and two different alleles of CDKN2a (call them C and D). The man inherited the BAP1A and the CDKN2aD alleles from his mother. From his father
Cell-based manufacturing in animal cell tissue culture
I am interested to gain more knowledge on this topic. I be really grateful if you guys can provide any information regarding this topic (books, journals...etc). Your feedback is highly appreciated.
How can you avoid contracting the following diseases?
How can you avoid contracting the following diseases? a. Trichinellosis b. Hydatidosis c. Tapeworm infestations d. Staphylococcal food poisoning e. Traveler's diarrhea f. Giardiasis
Prokaryotes can conserve energy and resources by making proteins...
Hello, I have answered these questions, this is my third attempt and have gotten several wrong. for each question there can be one or more than one correct answer.
1. The transcription of the trp operon genes (genes for enzymes necessary to synthesize the amino acid tryptophan) Question 1 options:
includes a repressor that is activated when lactose
CaPO4 - co-precipitation involves precipitating the dna with calcium by increasing the ability of the cell to uptake calcium with dna. Steps: assuming we have a virus with its viral dna add phosphate buffer and calciumchloride. dna precipitates as cells are uptaking calcium for their signalling pathways. as it is taking the calcium, it is also uptaking dna as
I'm looking for a photo of Saccharomyces cerevisiae(wild type) and Saccharomyces cerevisiae(fab1mutant) at 100X oil immersion, it would be awesome if the pic has a scale bar. Thank you
Cell Division: Stimulated Microscopic Activity-View of An Onion Root Tip
The actively dividing root cells are located near the tip of a root. A dye is applied to a sample of these cells. The chromosomes, of the cells, accept the dye and appear bright red compared to other cell structures.
For the following questions, identify the correct cells by referencing their location on the chart. Name the ROW letter first, followed by the COLUMN number.
Answer: Bacteria are very diverse, they are categorized in many categories, including whether they need air, where they dwell, their cell structure, shape, and diseases they cause.
1) Phages capable of generalized transduction A. Chromosome which are resistant to restriction enzyme B. the capacity to transducer any donor gene to recipients C. Genes for resistance to antibiotics D. Integrons for acquiring host genes
B or c?
2) the galactose operon of E. coli is located near the attachment site for the lambda prophase.
In the UV radiation experiment, what was the purpose of exposing one plate to visible light?
I need help with this micro lab question , we did an experiment with some bacteria ,
E. Effect of UV radiation
Per table: 12 TSA plates (6/pair of students), liquid cultures of Serratia marcescens and Bacillus subtilis, sterile cotton swabs, UV lamp, visible light source Note: Serratia marcescens produces a red pigment known as prodigiosin especially
