True or false? Explain your reasoning. Both Thelper (TH) and Tcytotoxic (TC) cells require the same type of 'second' or 'co- stimulatory' signal from a professional antigen- presenting cell in order to become fully activated the first time they encounter their specific antigen.
Q: An intravenous bolus dose of 500 mg Cefotaxime is given to a patient. Drug concentration after 2 and…
A: Cefotaxime injection is used to deal with sure infections because of a micro organism consisting of…
Q: Heterosis is a) the appearance of spontaneous mutations. b) a method of artificial breeding that…
A: Breeding can be defined as a process of sexual reproduction in which offsprings are…
Q: for the Bombay blood type O, the status of alleles at FUTI gene and the presence of Hantigen would…
A: Bombay blood group Discovered by Dr Y. M. Bhende in the year 1952 in Bombay. It is a rare blood…
Q: Which of the following attributes of a community would tend to lead to higher species richness?…
A: The correct answer is: A broad resource spectrum. The correct answer should be both a and b, when…
Q: Colonies have grown in a nutrient agar plate. However, it did not grow along the lines of streaking.…
A: Streaking method This method is used to produce isolated colonies of bacteria. This helps in…
Q: Summarize how the electron transport chain function to produce ATP in a bacterial cell versus…
A: The electron transport chain is a series of redox reactions that transfer electrons from electron…
Q: Modern evolutionary theory now shows exception to Charles Darwins' proposal that populations show…
A: False Darwin defined evolution as "descent with modification," the idea that species change over…
Q: gpll, gpV and gpX with the rolling cycle replication pattern of M13.
A: DNA Replication : DNA replication is the phenomenon or process in which a duplicate copy of DNA is…
Q: 1. Describe at least four ways in which transcription is different from DNA replication.
A: As per our company's guidelines we are supposed to answer a single question at a time only. Please…
Q: Dorothy H. Viruses
A:
Q: Which of these definitions of heritability is most correct? a)The total amount of phenotypic…
A: Which of these definitions of heritability is most correct? Ans : d) The proportion of phenotypic…
Q: The oxidase test is another biochemical test used to distinguish aerobic versus anaerobic metabolism…
A: * oxidase test used to know organism contains any cytochrome c oxidase enzyme present in it. *The…
Q: If in 20 years from now policy makers are finally creating a bill to reduce the impacts of climate…
A: mitigation and geoengineering together will allow us to avoid the need for adaptation
Q: 21. The best explanation for the red-eyed F1 females is (A) mutation (B) culture contamination (C)…
A: A culture of white-eyed fruit flies (Drosophila melanogaster) was maintained for many generations.…
Q: exposure of Bisphenol A effecting human health
A: * Bisphenol A is a chemical compound used in the manufacture of plastics which is a colourless…
Q: Discuss the evidence used to establish the causal association between virus infection and cancer.…
A: Introduction Cancer is a popular disease now a day. In the US, 1 in 2 women and 1 in 3 men develop…
Q: that requires control measures to be taken regularly and usually this is the focal point of pest…
A: Integrated pest management, or IPM, is a process you can use to solve pest problems while minimizing…
Q: Question 4 M fem Mon Fig 3, Life Cycle of Selaginella Me A zygote is the result of union of a sperm…
A: Which cells unite to form zygote in plants.
Q: A water solution contains 60% Na2S202 together with 1% soluble impurity. Upon cooling to 10°C,…
A: Please check my hand written answer
Q: If the genome-wide Fst for humans globally is 0.11, do you think this locus is currently or has been…
A: Abstract Genome-wide association studies (GWAS) have evolved over the last ten years into a…
Q: if there were two amino acid signal sequences were expressed on a aingle protein. where should the…
A: *Cells have various transport systems to make sure that proteins arrive at their correct…
Q: Complement can lead to the formation of the MAC which essentially lyses the target cell. Name…
A: The complement system is the system that is activated against any foreign antigen when it enters…
Q: Imagine that a NEW extremely contagious and deadly disease has swept the Earth. What would society…
A: Contagious diseases are those diseases that spread from one to another through air and water. With…
Q: Which of the following is INCORRECT cause for birth injuries Cephalopelvic disproportion o…
A: Birth injury is defined as harm or injury to a child that occurs before, during, or shortly after…
Q: What are the major differences between gene expression in bacteria and eukaryotes
A: Gene expression
Q: L. polyrhiza or L. gibba: Which species is the better interspecific competitor? Time Time Time The…
A: The bacterial species can be grown on the culture plate by using proper growth medium and growth…
Q: H. Identify the labeled parts of the reflex arc. (Choose) TChoose Choose (Choo (Chooie (Chooe Choe
A:
Q: 2.) Suppose that the carrying capacity of a second island is about 500, and the growth rate of a…
A: Carrying capacity is the maximum capacity an island can accommodate under normal population growth,…
Q: a species that has a diploid number 2n = 10. Draw this cell as you would expect it to appear during…
A: * cell cycle meiosis consists of four stages Prophase Metaphase Anaphase Telophase * In prophase…
Q: How does evidences from embryology support evolution?
A: Embryology can be defined as a study dealing with the development of embryo.whereas evolution can be…
Q: Compare and contrast the advantages and disadvantages of production of genetically modified crops.
A: Genetically modified crops are those whose genetic material has been altered in such a way that does…
Q: The antibiotic kanamycin binds to the small ribosomal subunit of bacteria and interferes with…
A: Kanamycin and diphtheria toxin can not be a good option for the treatment of archaeobacterial…
Q: Match each term with it's definition. a. Nutrient amount estimate to meet the nutrients eneds of 50%…
A: Dietary Reference Intakes (DRIs) are defined or set values that help in planning and assessing the…
Q: Time Time Time The growth of Lemna polyrhiza when cultured alone. The growth of Lemna gibba when…
A: L.gibba produce allelopathic chemical Better intraspecific competitor is L. polyrhiza. When two…
Q: Skin color is an adaptive trait that provides a) protection against breakdown of folate b)…
A: Pigmentation It refers to coloring of the skin(some areas or patches of skin turn darker in colour)…
Q: Genes with highly similar sequence are often located adjacent one another in the genome. Gene…
A: The gene is the smallest physical unit of heredity. The term inversion refers to a mutation that…
Q: Please type the rest of the solution u can draw diagrams handwritenly Please answer
A: In this diagram spermatogenesis is shown. This occurs in the male reproductive organ called testis…
Q: 4. Cystic fibrosis is a recessive condition that affects about 1 in 2,500 babies in the Caucasian…
A: Hardy weinberg principle is used to find the frequency of a population in general among different…
Q: Which group forms a clade (monophyletic)? Group of answer choices Flagellates Green…
A: Which of the following is monophyletic clade.
Q: about Land Preparation and Field Practices for Lowland and Upland Crops.
A: as the area of the square is 12*12 = 144m2 and the area of triangle is 1/2 * 10*10 = 50m2
Q: A point mutation is a mutation that arises when one nucleotide in the genetic sequence is…
A: Mutation is the change in the nucleotide sequence of the DNA that can alter the amino acid sequence…
Q: Describe or demonstrate the mechanism of sex determination in humans, grasshoppers, moths,, fruit…
A: Sex determination is the determination of sex of an organism by observing the development of its…
Q: We have studied how the six major primate groups evolved, with the most recent group being the…
A: Early people had been nonetheless swinging from timber two million years ago, scientists have said,…
Q: What is mass transportation across the cell membrane?
A: Cell movements
Q: The increase of CO2 in the atmosphere has created a blanket over the earth, trapping in heat and…
A: Two effects of climate change that affect the plant and animals.
Q: 10. A scientist working in a research laboratory has been examining different agonists of serotonin…
A: The correct option is B.
Q: Discuss, with examples, the similarities and differences between mechanisms of resistance to…
A: The term xenobiotic refers to chemical substances that are alien to animal life. Environmental…
Q: Question 57 Approximately 99% of the water that is filtered in the glomerulus is reabsorbed. O True…
A:
Q: For the Fluid Thioglycollate Medium, draw the five possible outcomes in the sections below and label…
A: Thioglycollate fluid medium * Thioglycolate broth is a versatile enrichment and differential medium…
Q: 28. What are the morphological, chemical and functional similarities and differences between…
A: Here I will discuss the morphological, chemical, and functional similarities and differences between…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Comprehensively explain why the D antigen is the most immunogenic of all the blood group proteins. Can a person with a weak D phenotype safely receive D- positive blood? Why? Why not? (If not, what type (in terms of Rh) should this individual receive? How should weak D blood units be labeled? Can a D-negative patient safely receive weak D blood? Why? Why not? Can a person with a partial D phenotype safely receive D- positive blood? Why? Why not? (If not, what type (in terms of Rh) should this individual receive? Is it possible to transfuse Rh- positive blood to Rh-negative recipients? Name several conditions that should be met when transfusing Rh- positive blood to Rh- negative recipients. Which individuals (priority list) should receive Rh- negative blood? Explain.eds Antibodies (Immunoglobulins) Objective 14 Antibodies (immunoglobulins) are glycoproteins secreted by plasma cells. They are located in interstitial fluid, plasma (gamma globulin fraction) and in body secretions. onse A. Antibody Structure Heavy chain Antigen-binding site Light chain Insmakamos Hinge region Complement- binding site Stem region Macrophage binding site OHO (a) Antibody molecule OHO X = Disulfide bond Carbohydrate four polypeptide chains (two heavy, two light) chains are held together by covalent disulfide bonds (S=S) each heavy chain and each light chain has two functional areas: consists of highly variable amino acid sequences which forms the basis of antibody specificity; antigen binds here ????? to more conserved amino acid sequences; there are five basic sequences of amino acids, which define the 5 antibody classes (IgG, IgA, IgM, IgE and IgD); ????? each class has its own characteristic set of effector functions (see next page) Your notes: 4 40 4. 39Describe HOW the spike protein produced by your own cells results in an immune response, antibody production and memory! You will need to mention the cell receptors involved, the specific T-cells and "other" lymphocytes that are part of this process and explain how all of this leads to antibody production and circulation for three months. Need answer in short but ASAPLY
- How T Cells Respond to Antigen? Describe their categories.True or false? Antibodies protect you primarily against foreign cells in your body fluids while T-cells protect you primarily against foreign cells inside you body cells. Explain your answer.This graph is illustrating the principle that: Secondary response (d) Primary Response anitbody concentration required for immunity (a) (b) (c) Time after infection 10 20 30 40 20 + Second Infection 10 30 40 in days First Infection delay your body can respond with more antibodies faster the second time it sees an antigen O all of the other answers O antibiotics won't work for viruses vaccines will not work for viruses the second infection is always much worse than the first infection Antibody concentration in blood
- True/False: Antibody binding to a pathogen surface is greatly enhanced when both antigen-binding sites of the antibody are engaged at once, a feature known as bivalent binding. It is possible for antibodies to bind bivalently to a wide variety of components on many different pathogen surfaces due to the flexibility in the protein at the hinge region and at the V–C junction.Compare and contrast TH and TC cells with respect to antigen recognition and the response to antigen.Discuss the differences between humoral and cell mediated immunity in terms of chemicals and cells involved in each process as they tackle pathogens. (please do this on text as i cant read writing the best) and also in paragraphs and not a table if possible thank you!)
- The following events elicit an antibody response to a T-dependent antigen (Ag). Put them in order and indicate which one would happen third (of the five answers as shown, not necessarily number 3 on a lecture slide or text diagram). O Ag-presenting cell displays Ag fragments next to self (MHC) molecule on its surface Helper T cell (TH) activates an appropriate B cell Helper T cell (TH) specific for the Ag binds to MHC-Ag complex B cell differentiates into a plasma cell; secretes antibodies specific for the Ag Ag-presenting cell phagocytizes Ag-carrying microbeInnate immunity includes (choose all that apply) Question Homework. Unanswered Select one or more answers and submit. For keyboard navigation... SHOW MORE ✓ b a Physical barriers Multiple answers: Multiple answers are accepted for this question d e с Non-specific cellular responses Chemical barriers Antibodies Lymphocytes Unanswered SubmThe Adaptive Immune Response Is a Specific Defense Against Infection Identify the components of cellular immunity, and define their roles in the immune response.