You extract B cells and dilute the cells so there’s one B cell in each well of a 10-well plate. You then add nothing to 1 of the wells (negative control). To the remaining 9 wells, you add various intact bacterial cells to the wells (a few cells of 1 strain of bacteria per well). After a day, you remove the contents of each of the 10 wells, and examine each of them under a microscope. For the control, you find the one B cell you started with. For 8 of the 9 samples when bacteria were added, you find the one B cell you started with. But for 1 of the 9 samples when bacteria were added, you find 100s of B cells. What does this tell you about the original B cells from the wells where you still only see 1 B cell

Q: 4. Here is an immunoassay to measure the explosive trinitrotoluene (TNT) in soil. An organic solvent…

A: Immunoassay is a biochemical technique that can detect the concentration of target molecules by…

Q: What will you find at the center of a clear plaque?

A: Plaques is opaque field of bacterial cultures which are infected by a virus or bacteriophage.

Q: serology (elisa) lab: When you added secondary antibody to the wells, what happened if your sample…

A: The full form of ELISA is the enzyme-linked immunosorbent assay that detects the presence of antigen…

Q: What's a good plasmid that marks plasma Membrane for B Cells?

A: A plasmid, a small circle of double-stranded DNA that is separate from the cell’s chromosome and…

Q: 1. Pathogens and vaccines with short incubation periods are not ideal for generating immunity…

A: All this is mine handwritten and original work hope this will help

Q: The material which is the result of the battle between macrophages and invading microbes is called…

A: The material which is the result of the battle between macrophages and invaling microbes id called .…

Q: knowing that the Control is  6.22 x 10-20 moles.channel-2sec-1 and CFTR-CRISPR: 3.84x 10-20…

A: Immunostaining using Quantum Dot fluorescence is a technique that combines the specificity of…

Q: direct fluorescent antibody, ouchterlony diffusion, ELISA) which do you think would work best for…

A: Blood grouping Blood grouping is the classification of the blood based on the type of antigen/s that…

Q: Emil has fallen and scratched a wound on his knee. After a while, the knee swells and aches at the…

A: The entire activity of the immune system in tackling infection is depicted in the figure given.

Q: What do you mean by immunofluorescence

A: Antibodies are immunoglobulins produced in response to antigenic stimulation. They may either bound…

Q: In the first panel of part (a), what is the purpose of the antibodies attached to the well?

A: Enzyme-linked immunosorbent assay (ELISA) is a disease detection method (AIDS) and it works on the…

Q: How would you argue antigenic nature of LPS in gram negative cell wall?

A: Gram-negative bacteria are characterized by an envelope that contains two membranes: an inner…

Q: About how big in micrometers AND nanometers is an Ebola virus? Describe the disease caused by the…

A: An infectious disease is one that is caused by pathogenic microbes. These microbes can be bacteria,…

Q: A pathogenic bacteria has entered the body via a wound: A few hours later, antigen presenting cells…

A: Endogenous antigens are presented by class I MHC while exogenous are presented by class II MHC. Let…

Q: Your lazy labmate needs your help! They set up a 10-ml culture of the slow-growing Myxococcus…

A: Answer.) :- To calculate the required cell density for the new culture, you can use the…

Q: What are the major parts of UNDER MICROSCOPE: 1. Lymph nodes 2. Palatine tonsils 3. Spleen

A: Microscope- We know that The microscope is an instrument used for magnifying different slides to see…

Q: create a logic map that will you to distinguish histologically between:  1. lymph node  2. Tonsil…

A: The immune system provides defense against any pathogen to the body. Using different mechanisms it…

Q: When antibody marks an invader so the macrophages can find it more easily to efficiently destroy the…

A: The ability of the body to fight against pathogens is called immunity.. T lymphocytes provide…

Q: The coating which some bacteria secrete to hide their antigen is referred to by 3 terms, give one as…

A: Some pathogens can hide their unique antigens from opsonizing antibodies or complement, They employ…

Q: Microb Which mechanism(s) of complement activation starts or initiates the complement response.…

A: Complement is a part of immune system. Activation of complement helps in the elimination of…

Q: List the values for each cell: A, B, C, D, A+B, C+D, A+C, B+D, A+B+C+D Calculate the sensitivity of…

A: Epidemiology is a branch of health science that deals with to study and assessment of all the…

Q: In the description of the preparation of an OR for surgery, bleach rather that alcohol was used to…

A: The disinfectants are the products that are used to kill or eliminate or inactivate microorganisms…

Q: be 96% sensitive. What does that mean? A western blot was used on the same sample to confirm, and…

A: Enzyme linked immunosorbent assay is a very sensitive test used to detect and also quantify…

Q: kDa 188- 62- 49- 38- -heavy chain 28- -light chain 18- 14- 6- 3- 1 2

A: While casting a gel, well are created on the gel to load the samples. When protein samples run in a…

Q: Antibiotic resistant bacteria are commonly found in hospitals. Why do you think that is?

A: Antibiotic resistance occurs when bacteria develop the capacity to overcome the antibiotics created…

Q: Anti-A antibodies are added to a blood sample to detect Anti-B antibodies are added to a blood…

A: Introduction :  There are some proteins in the blood called antibodies and antigens which differ…

Q: 5. You observe a blood agar plate and see a clear/transparent area where the bacteria has been…

A: Blood agar is enriched medium used to  differentiate bacteria based on their hemolytic properties.

Q: Bacteria In the petri dish in Figure 1, the bacteria Esherichia coli (E. coli) was grown and treated…

A: Bacteria are unicellular prokaryotic microorganisms (nucleus is not enclosed in a nuclear membrane)…

Q: Your child has had a moderate fever for 2 days. On the third day, you take her to the pediatrician.…

A: White blood cells are also known as leucocytes. They are responsible for providing protection…

Q: The mRNA sequence should ____ the template strand of DNA and  _____ the coding strand of DNA.…

A: The central dogma of life is what governs all major living organisms in the world. It states that…

Q: shows the directed migration of two immune cell types, neutrophils (red) and macrophages (green) to…

A: Immune cells are the sort of cells that emerge from stem cells in the bone marrow and mature into…

Q: Now, in this time of pandemic , brought about by corona virus, the entire world is looking for the…

A: Vaccines are actually biological preparations that are either injected or given orally to an…

Q: serology (elisa) lab: Why are enzymes used in this immunoassay?

A: Enzymes are biological catalysts. They speed up the rate of reaction. They decrease the activation…

Q: Is rapid antibody testing a form of ELISA? Explain your answer. How is an ELISA different from rapid…

A: The objective of the question is to understand if rapid antibody testing is a form of ELISA…

Q: What standard and isolation precautions do you need to follow? Why?

A: An infection is caused by the action of microorganisms mostly bacteria on any part of the body of an…

Q: What is the complement of 5’ -AGGTCGTAC-3’ ? 5’ – GCTAGTCAG-3’ 3’- AGGTCGAGT-5’ 3’- GAACTACGT-5’…

A: The objective of the question is to find the complementary sequence to the given DNA sequence 5’…

Q: B cells may be activated without TH (T Helper) cells to produce IgM antibodies. A) True False

A: Antibodies are secreted by the plasma B cells. These are basically the proteins that are produced by…

Q: If C3b was prevented to bind to C5 convertase, would the complement system still illicit an immune…

A: The immune system is responsible for the protection against the pathogens. The white blood cells or…

Q: Which kind of helper T cell response immune response (Th1 or Th2) has been shown to be more…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: You do a viral plaque assay using the six well plate shown below. The dilution scheme, what was…

A: The ideal plaque should be between 10 and 50. The plaque count is 11 in B1.  Volume plated=…

Q: A grain of sand is about 10-3m in diameter.  A human hair is about 0.1mm in diameter.  A red blood…

A: Various units of measurement are employed to quantify biological entities. These include millimeters…

Q: 5.Use the diagram below to explain the 6 processes that are happening in production of a male and…

A: Please follow the steps 2 & 3 for detailed explanation.

Q: Match the type of pathogen with the correct description. Prions Virus Protozoans Bacteria and…

A: Pathogens are varied in terms of taxonomy. Pathogens include bacteria and both single- and…

Q: This is an image of blood. Question: Is this persons blood cancerous? O No, this persons blood is…

A: Cancer is a disease in which there occurs abnormal growth of the cells of body and they starts to…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.