Biology question and answers for September 27, 2023
- Q 2) What are theessential molecules of life? Discuss these molecules in relation totwo examples of early research investigating the origins of life.(who was doing the research??).
- Q explains the roles that species play in their ecosystem, how theyinteract together, how species appear and disappear, as well asfactors limiting the growth of a population.
- Q 1) Describe the structural features of peptide b-turnsand how are they distinctly different from b-sheets.2) Describe a spectroscopic technique for characterizing b-turnsecondary structures in peptides.
- Q Abacterium that causes very similar symptoms sometimes containsTn6687. Describe the steps that would happen to transfer this toanother bacterium.**please explain and answer question complyely. I think it hassomething to do...
- Q Explain why eyes are the preferred portal of entry formost microbes.
- Q DQ: Why are the Jovian planets significantly bigger than theTerrestrial planets? Why do they have more moons?
- Q why would a scientist who needs to know the populationsize of an organism not simply count every individual of a speciesin an area?
- Q Devise a scheme of cutting out YGOI insert from the donorplasmid and placing it into the recipient plasmid.How would you separate the transformed cells (those that havepicked up the recombinant...
- Q 1)Describe how Rhizobium infects members of the Fabaceae and howthe subsequent relationship between the bacteria and plant benefitsboth organisms. 100 marks2) Ferns are vascular plants but they are predominantly found...
- Q A) Use the differences in stem morphology, primary and secondarygrowth to explain why eudicots are also called woody plants. B) Whydo trees die when the bark is removed from the...
- Q Kate is born with features that do not look quite normal. Her eyesare wide-set and slightly slanted. Her nose is short and flat, andshe keeps her mouth slightly open. There...
- Q A 75-year-old man is admitted to the hospital for a severeurinary tract infection. A catheter is put in place and he is givena regimen of the appropriate antibiotics. The infection...
- Q Question (2) Which of the following histology stains is/are usedto highlight glycosaminoglycans in tissue sectionsAlcian BlueMillers elastinMassons trichromeHaematoxylinTrypan blue
- Q what is transposon methylation in plants, how does this occurand what is the effect the phenotype of plants and further what isthe effects this has on darwinian selection?
- Q Amniotic Fluid Stem Cells (AFCS) though classified as adult stemcells have a remarkable ability to make a multitude of celllineages from all 3 germ layers. What are 3 arguments forconsidering...
- Q For eạch of the following, indicạte whạt the effect would be onthe EFG/Rạs signạling pạthwạy (increase or decrease) and why.a. A destạbilizing mutạtion in the SH2 domain of Grb2.b. Overexpression...
- Q Could new mutations or diseases arise through IVP, CRISPR, orPGD?
- Q A detailed description of the technology based on the solution.  A description on how it will impact climatechange.  A thorough discussion as to whether implementation of thistechnology is feasible. Pros and Cons...
- Q How do nerves contribute to the regulation ofosmoregulation?How do muscles contribute to the regulation ofosmoregulation?How does cell signalling contribute to the regulation ofOsmoregulation?
- Q a) Consider a person of 70 Kg. 0.20% of the body mass ispotassium and it is a vital nutrient. Natural potassium (mostly39K and 41K) also contains 0.012%40K with a half-...
- Q What was the significance of the 1944 Avery-MacLeod-McCartyexperiment? How are the discoveries of that experiment asignificant contribution to the field of biotechnology?
- Q Explain how reverse transcriptase causes resistance to the viralprotease inhibitor ritonavir
- Q ln genetics, what are the biological effects of radiation inhumans ?
- Q What would happen if we use Polymerase I instead of PolymeraseIII for DNA replication in a PCR? If we used an enzyme with lowfidelity, how would the DNA product compare...
- Q The enzymes involved in glycolysis are.....A.constitutive proteinsB.inducible proteinsC.repressed proteinsD.regulated proteins
- Q Epidemiology: Draw a DAG of the relationship between exposureand outcome, accounting for other variables discussed. Then, writeeither “Yes†if it appears that confounding of the relationshipbetween the exposure and the...
- Q Problem 1. Molecular GeneticsA sea urchin mutation results in an unusual positioning of themitotic spindle during the very first cleavage division:instead ofthe zygote dividing along the animal-vegetal axis, the cell...
- Q mtr: tryptophan-specific transport protein – transportstryptophan into the celltrpA: tryptophan synthase, a protein – synthesizes tryptophanfrom its basic componentscusF: Periplasmic copper binding protein – binds copper ionstnaA: Tryptophanase – enzyme...
- Q What is the concentration of bleach that is used to disinfectyour work area? Why is it     used todisinfect rather than to sterilize? When do you disinfect your workarea? (3           points)Can...
- Q QUESTION 21Critical results from the microbiology department must becommunicated to the clinician immediately. All of the followingresults are considered critical except:a.positive spinal fluid gram stain on cultureb.blood smear for malariac.negative...
- Q 1. Describe the path followed by water from the soil, throughthe plant and into the atmosphere. Where in the path are theimportant resistances to water movement?2. What is meant by...
- Q What does it mean to say all organisms are identical in theassumptions for the exponential growth model? Does that mean bothmales and females can reproduce?
- Q Consider an ion for which there are only passive leakagechannels. If the membrane potential is farther from the ion’sNernst potential, the magnitude of the current associated with thation will be:a....
- Q What terms are used to describe the optical properties of abacetriumIf a bacterium produces pigment what does that reallymeanWhat terms are used to describe the margins of abacteriumWhat terms are...
- Q 5. (3 pts) What is the minimum number of base substitutions thatmust be made to change the codons from:glutamic acid to lysine?leucine to alanine?phenylalanine to glycine?
- Q Explain the condition and consequences of directionalselection and balancing selection.*This is a Population Genetics topic.
- Q QUESTION 18Briefly describe why E. coli wants toexpress different amounts of the lac operon genes in relation tothe presence/absence of glucose and lactose and themolecular mechanism by which it does...
- Q a. How does regulated secretion differ from constitutivesecretion?b. What would be the effect of mutating the KDEL sequence of aresident ER protein (like BiP)? Would this effect be similar ordifferent...
- Q Please Use your keyboard (Don't usehandwriting) Thank you..Courses Name: Health Policy & Saudi Healthcare System***Please complete my answer to be 500 words..I need new and unique answers, please.(Use your own...
- Q The phylum Echinodermata has several synapomorphies, but eachsubgroup modifies these synapomorphies and thus it is difficult torelate these groups.a) List three synapomorphies for the phylum Echinodermata.b) For each of the...
- Q Discuss the impact to hemoglobin structure/function fromexercise, high altitude, carbon monoxide, carbon dioxide, 2, 3 BPG,etc.
- Q 12. What are the different classes of immunoglobulin? 13. Whatspecific roles does each class of immunoglobulin play in hostimmunity?
- Q Describe the process by which the information in a gene istranscribed and translated into a protein. Correctly use thesewords in your description (and highlight them as bold text inyour submission):tRNAamino...
- Q Cinnabar eyes (cn) and reduced bristles (rd) are autosomalrecessive characters in Drosophila. A homozygous wild-type femalewas crossed to a reduced, cinnabar male, and the F1 males were thencrossed to the...
- Q The observation ismade that a row of tomato plants has failed to produce any fruit.Another hypothesis about the failure to produce fruit is:The lack of rainduring the preceding month has...
- Q 2. A protein spans the nuclear membrane, with a smallextranuclear domain, a substantial segment crossing the nuclearmembrane, and a domain within the nucleus. It is(a) a peripheral membrane protein(b) an...
- Q describe the process that occures in gyclosis. Be sure to describeall phases and products throughtout.
- Q what happen to the enzymes of an organism when is placed in anenvironment at a temperature higher than the maximum growthtemperature? Does the organism die or only stop growing (stop...
- Q Excessive alcohol consumption has been strongly linked withfatty liver disease(steatosis) and individuals with defective very low densitylipoprotein cholesterol(VLDL-c) are at higher risk of developing the condition. Explainhow excessivealcohol intake can...
- Q Please answer the following questions regarding your microbe.Please cite all of your sources.a) What is the life cycle of disease for your microbe inhumans?b) What virulence factors does your microbe...
- Q 1) A plasmid has the antibiotic resistance genes for kanamycinand ampicillin. You insert foreign DNA into the ampicillinresistance gene. E. coli containing the recombinant plasmid(plasmid + foreign DNA) will grow...
- Q 1. Describe the gene and protein E. coli beta-glucuronidase.What is its biological function?2. Describe the pET28a plasmid. Â
- Q Compared to glycerol (shown), O2 has a higher rate ofpassive permeability through a cell membrane. Which of thesecorrectly explains why? Choose all that apply.a. The most energetically challenging part of...
- Q I am trying to isolate the proteins found in the blood ofAlzheimer's patients with the hope of finding a biomarker that canpotentially indicate the early onset of the disease and...
- Q Parent 1: AA Bb ccParent 2: Aa Bb CcA, B, and C are dominant.How many distinct phenotypes could be produced?
- Q Humans are bipedal, terrestrial omnivores. As a species, we areadapted to quite a range of habitats, from deserts to mountains andfrom rain forests to tundra. Ultimately, however, we are descendedfrom...
- Q To date, which biomes have been the most heavily affected byhumans? Which seems to be lightly affected? Offer a clearexplanation.
- Q 3-carbon-atom (3C) molecule produced in glycolysis is called______________Inside a eukaryotic cell, this molecule moves from________________ to _______________ and is oxidized into_______________ . If oxygen is not present, it gets reduced...
- Q explain the effects of each of the following on the rates ofglucose and/or glycogen metabolisma) effects on decreasing the concentration offructose-1,6-bisphosphate. support your answer by stating thebiochemical principle that governs...
- Q 1. Detail the events associated with fertilization in seaurchins. Include the acrosomal/cortical reactions and howpolyspermy is prevented.2. Describe the body plans of animals. Include types ofsymmetry, germinal tissues, body cavities,...
- Q Ihave a question about qPCR.How to measure an mRNA level of a gene by qPCR. If I perform arealtive quantification qPCR, first I need to convert mRNA into DNAtemplate by...
- Q An investigator writes that the instrument used was validbecause it has a high Cronbach alpha. Is the investigator’sconclusion correct? Explain your answer.(UsingNursing research: Reading, using, and creating evidence(4th ed.). Philadelphia:...
- Q Which of the following is FALSE regardingBacterial Endotoxins?a.They can cause Fever and Hemorrhagic Shockb.They are secreted by the cellc.Examples of bacteria that produce them include Clostridiumtetani and Bacillus anthracis.d.The bacteria...
- Q 1. Explain in your own words why regulation is important. Iwould like you to use 2 examples, one from human communities andone from the human body in your explanation. Make...
- Q State one atmospheric conditions used by plants to evolve underincreasing co2 concentrations and where each carbon cycle pathwaygive benefit to the plant?
- Q I have asked this question before however I am not getting theright answer. What is the evolutionary advantage to having theconduction velocity of neural impulses change with temperature,and which of...
- Q The Klenow fragment is produced when DNA polymerase 1 fromE.coli is enzymatically cleaved by the protease subtilisin. Usingdiagrams, explain what the Klenow fragment is and why the fragmentis better suited...
- Q What are two ways in which Maria’s grammar may impact upon hercommunication with the people she is providing care to?Why is the speed of her voice important when maria is...
- Q What is the difference between a centromere,chromatid, chromatin and chromosome in Eukaryotes?
- Q Difference between nonheme iron proteins and heme ironproteinsWhat does ferrodoxin do?
- Q Choose an issue you would like to model with a feedbackloop.Remember to start with the “action†and predict the effect andtype of feedback that might result.
- Q The percent daily value on a Nutrition Facts label is based ona(n)diet of 2,500 calories each day.BMI of 22.individual weighing 175 pounds.individual weighting 120 pounds.diet of 2,000 calories each day.
- Q Why is hydrogen peroxide so effective against anaerobes likeClostridium tetani that have infected a puncture wound?Make sure to explain what an anaerobe is as well as the action ofhydrogen peroxide...
- Q What do you know about delivery of O2 and removal of CO2 fromtissues (carbamate and bicarbonate)
- Q Describe the effect of oxygen in radiotherapy and discuss themechanism for this effect
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