Biology question and answers for September 23, 2023
- Q a. With reference to the concept of 'afinity maturation',briefly explain why IgG and IgA antibodies are generally of higherafinity than IgM antibodies. b. Despite this, IgM antibodies can be very...
- Q QUESTION 1Which of the following is an enzyme?a G proteina G protein-coupled receptorATPAll of the aboveNone of the above1 points   QUESTION 2Which of the following is true for all enzymes?They...
- Q Multiple Sclerosis (MS) is an Autoimmune disease that is verydifficult to diagnose. Using M13 library, how can you develop adiagnostic tool to differentiate MS from other diseases withsimilar symptoms. In...
- Q You may choose more than one answer. Which of the followingphosphatases activate their substrates by phosphate groupremoval?PPPs (phosphoprotein phosphatases)PHLPP (PH domain and leucine rich repeat protein phosphatases)isofromsProtein kinase CCD45 antigen...
- Q 1B.In a hypothetical small population of only 100 frogs there exists agene with two alleles, H and h. A scientists determines that 13 ofthe frogs are homozygous dominant (HH), and...
- Q Fauna hypotheticus crosses with a closely related animal thathas 2n = 40 small chromosomes. They produce a viable hybridoffspring. Studies of the chromosomes of the hybrid animal duringmeiosis show both...
- Q You are working in a clinical laboratory, as an entry-levellaboratory technician (average salary $35k-$58k/yr). You havepurified a novel anti-viral (a cyclic peptide!) with a molecularweight of 2 kDa using ammonia...
- Q Hi, I am struggling to understand this worksheet my professorgave us for practice. Could someone make any sense of this?The scenario: Sodium is found largely in the extracellularcompartment with concentrations...
- Q give a comprehensive definition of the followingterm*antigen* antibody* antiserum* agglutination* haemoglobin* polyclonal antibodies* monoclonal antibodies* hybridomal cell* agglutination
- Q 12. How is regulation of cholesterol biosynthesis achieved incells? Identify a component of this biosynthetic pathway that wouldbe a good pharmacological target for regulating cholesterolbiosynthesis. (6pts)
- Q Question 4. Consider three person embryos – which are designedfor couples with a female who carries mitochondrial mutations. Inthe process, we learned that two women can both have the samemitochondrial...
- Q what is the role of CTLA-4 and PD-1 in immune response?
- Q Regarding skin cancer, Melanoma,1) What cell type is affected?2) Describe the defect in cellular reproduction responsible forthe cancer.3) Discuss therapy available for treatment of the disorder. Doesthe therapy treat the...
- Q 1) When chemical methods of cell modification are used, how doesthe construct get into the cells? Briefly (in no more than 2well-written sentences) explain the process using one particulartype of...
- Q Compare calcium chloride transformation, electroporation andtransfection. State the benefits and drawbacks of each method anddescribe the situations in which each method may be used.What are the challenges of using biolistics...
- Q After RNA primer is removed from the leading strand, why doesn'tthe leading strand have the end problem?
- Q 26. With respect to alternative endocytosis pathways whichstatement is CORRECT?A.Macropinocytosis only occurs when triggered by bacteria.B.All cells can phagocytosebacteria.C.All endocytosis pathways delivery their content to earlyendosomes.D.Both macropinocytosis and phagocytosis contribute...
- Q Samos was a greek living about 300 bc. what scientific model didhe develop? who developed the same idea nearly 2000 years later?why is this considered a period of non-progressive science.
- Q An average human body at rest consumes 300ml of oxygen perminute. How many liters is that in a day? Express in real numbersand exponentially.Suzie attends ABIO202Z. The syllabus states that...
- Q Chapter 1 - Introduction - page 1UNSCRAMBLE THE WORDSnedailacct  hsto                                                                              Infectionof a host other than the normal host species (two words)racreri                                                                                             Ahost harboring a parasite withoutexhibiting clinical signsscaimsmlnoem                                                                               Twodifferent organisms in which one partner...
- Q 1.What type of medium is MSA? What ingredients are responsible forthis medium? What would be the result of removing NaCl from theMSA?2. Give 2 species of a gram pos genus...
- Q Brian, Edison, and Kevin are lumberjacks who live next to aforest that is open to logging; in other words, anyone is free touse the forest for logging. Assume that these...
- Q Describe at least 4 organelles/structures present in orassociated with plant cells but not in animal cells. Be sure toinclude the function and any identifying structural components.Review basic cell organelles and...
- Q - Determine the energetic cost of converting eight pyruvạtesbạck into four glucose.-How does this compạre with the forwạrd pạthwạy of glycolysis(four glucose into eight pyruvạte)? Ạre they energy equivạlent?
- Q Give scientific facts both supporting and disputing thisstatement: In deserts with periodic monsoon rains, CAMplants are better at accumulating biomass than C4 plants.Please give specific facts and reasoning of why...
- Q A breeder has observed variations in coat colour and pattern inthe guinea pigs she has bred over the years. Black coat colour (B)is dominant over red coat colour (b), and...
- Q 2) Biofilms and other multicellular behaviors a) Recall thatbacteria (and archaea) exhibit both transient and permanentmulticellularity. How does these behaviors benefit bacteria? Whatare the costs? b) What kinds of environmentts...
- Q Heart disease is top reason for death between citizens in USAand more modern countries. Fast food is main cause of unhealthfulfats that cause drastically to heart disease. Think you're a...
- Q i need a biography about Muhammadibn musa Alhumdillah -kwarizmi. 200 words*muhammad ibn musa alkhwarizmi*
- Q 4. Continuing the example above of mating two plants, ahomozygous recessive for pollen gran and flower color and the otherheterozygous for both traits. A) What are the genotype andphenotype ratios...
- Q The “novel coronavirus†(SARS-CoV-2) that is causing muchconcern this winter/spring is a member of the familyCoronaviridae.  Describe the structure, and thenature of the genetic material, of theCoronaviridae. Â
- Q question: Why do you think mentalillness has a stigma in the United States? How does autonomy clashwith beneficence in the case of individuals with mentalillness?can you make sure the answerto...
- Q What drug treatments are available for COVID-19?
- Q How did Lamarck’s theory of evolution DIFFER from that ofDarwin’s?Lamarck believed that Earth was old enough to provide asufficient time scale for the process of evolution.Lamarck believed that the environment...
- Q What cytoskeleton filaments and molecular motors are involved inHIV trafficking?
- Q 1. Outline the steps of electrical conduction through themammalian heart.2. What is the importance of the skeletal muscle and respiratorypumps?3. What happens to heart rate, stroke volume, cardiac output,mean arterial...
- Q 2. What is the differences in the formation of Endochondrialbone and Membrane bone?
- Q The following mRNA fragment is responsible for coding exactlythree amino acids, the 33rd, 34th, and 35th ones of a polypeptidethat is made of 60 amino acids. The base sequence in...
- Q How does temperature have an effect on the growth of insect eggsand larvae?
- Q ihave been asked to write an essay 500 words about \"how to loseweight\". The essay should include:80-100 words Abstract5 paragraphs:1- Intro2,3,4- Body5- ConclusionI do not mind if you copy the...
- Q You are growing C3 and C4 plants in normal (21%) and low (1%) O2air, under both warm well-lit conditions and cool shady conditions.You find that, in general, the C3 plants...
- Q Describe how cell metabolism affects the processing ofa pear as it moves through the process of cellular respiration. Be sure to list each step of cellular respiration and accountfor the energy...
- Q For the experimental background, we treated 3T3 mousefibroblasts with EGF and are now trying to detect thephosphorylated tyrosine proteins using primary and secondaryantibodies as stains. We also made 4 different...
- Q If mutations such as those of the Ubx gene candrastically change morphology in a single step, why do mostevolutionary biologists maintain that modification of existingtraits and the evolution of novel...
- Q What is the order of electron flow in oxidative phosphorylationfor the electrons coming from NADH? Additionally, What componentsin this electron flow are important for the production of ATP andwhat do...
- Q biochem question:At the pO2 in ACTIVE muscle tissue, would Mb or Hb be predictedto have the higher Kd value? Explain, correlating with function ofthe protein.Would a protein with only tertiary...
- Q VIRUSSIZEGENOMEREPLICATIONHOSTSDISEASESMISCELLANEOUSherpesvirusparvovirusrotaviruspoliovirusinfluenzaHIV
- Q What is our current state of knowledge on DNA.What Links genetic characteristics to DNA structure.What are the steps in the process of protein synthesis.How can it be that DNA through...
- Q All plants use the Calvin Cycle to incorporateCO2 into simple sugars.C3 plants (typicalplants) obtain their CO2 directly from the atmospherebut not without a cost. Explain this trade-off. What doC4 plants...
- Q What is osmosis in biology
- Q what are four things they talked about in Edith WidderVideo : Glowing life in an underwater world.
- Q Partial beta oxidation of a 12:0 fatty acid could yield whichof the following in addition to an acyl-CoA longer than 3carbons?Correct Answer: 2 acetyl CoA + 2 FADH2 + 2...
- Q Your colleague in the lab next door is studying the diseasecerebral cavernous malformations (CCM) and discovers that the humanhomologue of the worm exc12 gene (human gene is HEXC12) is mutatedin...
- Q DRAW the negative feedback involved withthermoregulation. Be sure to explain all parts of the feedback loopas well as why it is considered negative instead of positive.
- Q The patient is a 7 year old male who has an abdominalmass. The mass involves his small bowel, and biopsy reveals a highgrade tumor with starry sky pattern, small cells...
- Q What is Coomassie blue? How does it function?(1.5 marks)As an alternative to coomassie blue staining, a silver nitratesolution can be used. How does silver nitratestaining differ and under which situations...
- Q In a diploid organism, the IND gene encodes a transcriptionalactivator that binds to an enhancer upstream of the EXP gene. TheREP2 gene encodes a repressor protein that binds to IND...
- Q What are the different steps the microbes cause diseases andthree main/general microbial control methods employed?'
- Q Which of the following statements about metabolism are true?1) Catabolism is the process in which complex substances arebroken down, yielding a net output of energy.2) Metabolism is an integrated system...
- Q What are four major functionsof membrane proteins? How aremembrane proteins inserted into the membrane -give details of two methods. Give a specificexample of a protein that is an integral membrane...
- Q The ThyroidDiscussion Assignment:Thyroid hormones exert their effects on cells in a mannersimilar to steroid hormones; describe the mechanism of action ofthyroid hormones.Why would an imbalance in thyroid hormones have such...
- Q whyare lichens called mutualists?who are the partners in the mutualisim?-what isexchange?
- Q Kidneys filter the blood and remove waste and extra fluid fromthe body and are essential for maintaining good health.What is one possible reason for kidney failure? Why wouldsomeone die if...
- Q type in your own wordsConcept/TheoryParaphrased bookdefinition        (in yourownwords)   epithelial tissue   connectivetissue   muscle tissue   nervous tissueReviewhomeostasis:   stimulus   sensor   effector   responseReview:   acclimatization   evolutionaryadaptation
- Q Questions to answer:Do you think a potential new partner has the right to know ifyou had an STD?At what time in a relationship do you share with a partner thatyou...
- Q You obtain three samples from three different populations.Observed genotype frequencies.Population 1 AA=0.70 ; Aa=0.25 ; aa = 0.05Population 2 AA=0.35 ; Aa=0.55 ; aa=0.10Population 3 AA=0.45 ; Aa=0.40 ; aa=0.15Populations...
- Q Describe a protocol for isolating mitochondria from rat liverand for estimating the purity of the preparation.
- Q 1: How are endocrine disruptors associated with IQ?2: Why has research on endocrine disruption spurred somuch debate? What steps do you think could be takento help establish greater consensus among...
- Q 1. Which of the following is essential for male sexual behaviorin both rats and monkeys?a. The vomeronasal organb. The main olfactory bulbsc. The amygdalad. The medial preoptic areae. All of...
- Q Application of the A&P of the Animal & Plant Cell:Relate the structures of the cell (animal or plant) to parts ofsome other concrete or abstract structure and explain how eachstructure...
- Q Organism 3Field Notes: Specimen collected from shaded area along stream inSouth Cumberland State Park (Grundy County, TN)Laboratory Analysis:Body: Large leaves emerging from underground rhizomeSize: 63cmChromosomal Analysis: Plant body is diploid...
- Q describe the structure and replication of DNA and how it allowsgenetic information to be passed on from generation togeneration.
- Q The E. coli LacZ will be used as a reporter gene andthe expression of the LacZ gene product will be detected by theenzymatic cleavage of the compound X-gal producing blue...
- Q The Simpson’s Index is typically used as an ecological tool todescribe the diversity of species in a particular area. Why isn’tit fair to use the Simpson’s index we calculated using...
- Q 1 The Krebs Cycle occurs in/on theA matrix of the mitochondria.B cristae (inner membrane) of the mitochondria.C stroma of the chloroplast.D cytoplasm of the cell.E thylakoid membranes of the chloroplast.At...
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