Biology question and answers for July 22, 2023
- Q Why do you think that phosphorylation and dephosphorylation hasevolved to the point that it has such a prominent role switchingproteins on and off in signaling pathways? (as opposed to, forexample,...
- Q 1) You sent off a sample for sequencing in order to aid inprescribing the proper treatment and got the following sequenceback:a.TGGATTATGCGATGTCGGTCATTTTGGACCGGGCTTTGCGCATATCGCAGACGGTTTAAAGCCCGTCCAGCGTCGAATCGTGTACGCCATGTCAGAATTGGGTTTAAAATCAACCGCTAAGTATAAGAAATCAGCGCGGACGGTAGGCGACGTTTTGGGTAAATTCCATCCGCACGGAGACACCGCCTGTTACGAGGCCATGGTATTGATGGCCCAACCTTTTTCATTTCGCTATCCCTTTGTCGATGGGCAAGGCAATTGGGGGAGCGCGGATGATCCCAAATCCTTTGCCGCCATGCGTTATACGGAAGCACGTCTGb. Describe the complete process, step by step, that thisprotein...
- Q During mismatch repair, how does the cell “know†which strand todegrade and repair? Why will it lose this ability after a certainamount of time? Provide a reason that might explain...
- Q Climate Change and Global Warming                                  Chapter9What are the causes of global warming?What are the consequences of global warming?What are the mitigation and adaptation policies?Questions are from the Textbook \"The Environment and...
- Q ESSAY QUESTIONThe Central Nervous System is considered “immunologicallyprivileged.†What does this mean?What are the features of theanatomical structures that that enable this status. What are thefactors that can cause a...
- Q Describe (in detail) similarities and differences inpond structure between Green Library and OE Ponds. Choose oneabiotic and one biotic factor that affects primaryproductivity. In the context of yourresults, explain how...
- Q One species of plant produces blue, light blue, and whiteflowers. To determine the inheritance pattern, the followingmatings were performed:blue x blue to bluewhite x white to whiteblue x white to...
- Q A female with Muppetrus bristle mates with a male with Rheingoldenbach body color,producing the following counts:F1 GenerationMalesWT-WT Disease-WT WT-Disease Disease-Disease260 252 ...
- Q 1. In CRISPR, why does it make sense to design our crRNA firstbefore making any other changes to the genomic DNA?2. In CRISPR, when searching for PAMs, GGNGG makes a...
- Q A woman is heterozygous for X-linked disease (Hemophilia A). Ifshe marries a man without hemophilia, is there a chance that herdaughters will suffer from the disease?(choose the best option)a.only daughters...
- Q discuss the consequences of the failure of a formerclot to dissolve
- Q Explain the different types of secondary metabolites, listingthe major chemical group types and some examples of their rolesExplain, using examples, why secondary compounds are importantto plant long-term survival even if...
- Q Howare ethylene levels regulated and perceived?What is the triple response?What is controlled by ethylene levels and signaling?
- Q Describe the historical pattern of growth of the worldwide humanpopulation since our origin. Include in this historic overview thechanges that have happened technologically, medically, culturallyand nutritionally to result in major...
- Q In class we reviewed that effective selection of resources hasimplications BEYOND an individual organism’s immediate survival.What does this mean?
- Q A) The formation of DNA from individual nucleotides is bestdescribed as:1. a process that will have a net yield of energy.2. a process that will have no effect on disorder...
- Q Haemoglobin is an amazing molecule, as it allows vertebrates totransport gases from the environment to the tissues. To boot, bloodchanges its oxygen-binding characteristics in response to theanimal’s external AND internal...
- Q Explain the physiological mechanism of diffusion ofoxygen, how could you measure the diffusing capacity of thepatient, how it might be affected by the disease, and whichconditions from the vital signs...
- Q Give and explain one example of each of the following types ofevidence supporting evolution:Molecular (biochemical) evidenceAnatomical evidenceEmbryological evidenceBiogeographical evidenceFossil evidence
- Q Read each question carefully. Write your response in the spaceprovided for each part of each question. Answers must be writtenout in paragraph form. Outlines, bulleted lists, or diagrams aloneare not...
- Q Write Personal SWOT Analysis but it should be link itto lab technician job
- Q how would loop dilution, spread plate, and streakplate isolation techniques be affective by the use of selectivemedium
- Q . Describe the V(D)J recombination process in terms of thesequence of events that occurs and the enzymes involved at eachstep (4 points). Describe why V(D)J recombination is crucial foradaptive immunity
- Q What basic lessons were learned in the classicexperiments about gene regulation and regulation of theeven-skipped gene by CRMs that determine stripe two formation inDrosophila embryos?
- Q TheAmpR gene on plasmid pGLO gives cell resistance to Ampicillin.Explain what that means and how this gene provides that.
- Q how can gel electrophoresis be used to determine whether aligation experiment was successful? Be specific with what you wouldexpect to see in the various lanes of the gel if a...
- Q Explain the effect(s) that the following will have on the use ofketone bodies in the human body (each case is independent)a. there is a serum albumin deficiencyb. beta-hydroxybutyrate dehydrogenase is...
- Q Describe the mechanisms and prevention of transfusionhemosiderosis, citrate toxicity, andposttransfusion purpura.
- Q Describe the clinical features of transfusion reactions causedby circulatory overload and patients at risk of this transfusionreaction.
- Q Kidneys produce the hormone erythropoietin whenever more redblood cells are necessary. Think of reasons for the body needingmore red blood cells.Athletes who abuse erythropoietin many more red blood cells thanusual....
- Q 1. True/False: Individuals with mutations in the genes encodingthe IL-12p40 subunit (shared by IL-12 and IL-23) are susceptible tonot only pathogens such as M. tuberculosis that require a Th1response, but...
- Q Question 1a:How many sigma factors have been identified to be active in thesporulation of B. subtilis? What is each function?Question 1b:What is the Lytic Cycle and the Lysogenic cycle? Is...
- Q Howare cytokinin levels regulated?How is the cytokinin signal propagated?What is the relationship between auxin and cytokinin?
- Q 1.Explain the differences betweenfacilitated diffusion and group translocation2.How are parasitism and antagonismsimilar and different?
- Q 11. A package of yeast (7.4g) was suspended into 100 ml ofwater. Thesuspension was serially diluted by transferring 0.1 ml aliquotssuccessively to 9.9ml of water three times in secession. 0.1...
- Q Jaws first occurred in which group of fishes?ostracodermssharksplacodermsray-finned fishesIf a mollusk had a lung, where in the body would it belocated?visceral massmantlefootradulaWhich characteristic allows reptiles to thrive in deserts?the larval...
- Q 5. The KEGG and NCBI databases contain a wealth of informationobtained from sequencing and analyzing the complete genome ofAcinetobacter baumannii 1656-2, which is a medicallyimportant oxidase negative (cytochrome c oxidase-...
- Q Describe one example of an organism that lives in an extremeenvironment (know as extremophiles). What kind of environment doesit live in? How does it maintain gradients across its cellmembrane? What...
- Q The outer covering of an adult sea squirt is called the .mantleexoskeletonshelltunicWhy are sponges considered metazoans and all otheranimals considered eumetazoans?Sponges are prokaryotes, whereas other animals areeukaryotes.Sponges lack true tissues,...
- Q 1. Incats, long hair (s) is recessive to short hair (S).a) Atrue-breeding (homozygous) shorthaired male is mated to alonghaired female. What will their kittens look like? Explain youranswer. Show your...
- Q Draw the signal transduction pathway that occurs in the outersegment of vertebrate photoreceptors. Be sure to describe what thecomponents are and what they do (half a sentence each)
- Q the thermodynamic parameters indicate that the _______ of duplexDNA is enthalpically opposed and entropically favored, while the_________ of duplex DNA is enthalpically favored and entropicallyopposed (hint: see the discussion of...
- Q Translation initiation differs in many aspects betweenprokaryotes and eukaryotes. Highlight the key differences.
- Q Briefly describe three ways that insulin is stimulated?A direct response to high glucose is not an acceptableanswer.What is the clinical relevance of detecting glucose inthe urine?
- Q Unbeknownst to Joe, his bout of enteritis severelyinjures his pancreas and he unknowingly has developed type 1diabetes. Describe the disease progression that Joe went throughbefore diagnosis and how he was...
- Q Question 11 [10 marks / 10 minutes]For the mutations in the 5’ UTR of the trp operon given below,explain the effect on expression of the trp operon relative towildtype (increased,...
- Q Question 9 [10 marks / 10 minutes]Suppose there are two different mutant alleles of the same gene.Sequence analysis shows that both alleles are single nucleotidesubstitutions, and that different nucleotide positions...
- Q A lipid bi-layer membrane can be described as a “fluid mosaicâ€,with free lateral diffusion and almost no unassisted flipping. Whatare the features of lipids and lipid bi-layers that contribute tothese...
- Q The E. coli trp operon encodes proteins involved in thebiosynthesis of the amino acid tryptophan. Control of trp operonexpression is mediated by two distinct regulatory mechanisms.Describe these two regulatory mechanisms...
- Q On an isolated island you discover a vertebrate animal that hasnever been described before. It has feathers, a feathered,bird-like tail, lays hard-shelled eggs and can fly, but it hasteeth instead...
- Q Most vitamins are cofactors or coenzymes. What happensif we do not consume enough vitamins in our diet (specifically tothe enzymes that use them)?
- Q 1. what is a virus?What are the causes of the common cold?
- Q Which of the following is a type of geneticmodification? Select ALL that apply.gene editingtransformationhybridization and artificial selectionMutagenesis**3.Which of the following are components of thedisarmed plasmid used to create transformant plants?...
- Q Howis a specific immune response initiated? What is clonal selectionand what types of cells does it produce?
- Q Assuming 1.5 ATP per FADH, 2.5 ATP per NADH in mitochondria,compare approximately how many ATP equivalents would be generatedfrom the complete oxidation of 12-carbon worth ofa. saturated fatty acidb. sugar...
- Q Several international students have performed a glucosetolerance test as part of a scientific study of lactasepersistence. Here are the results:Blood glucose (mg / dL)Minutes after drinking milk0306090120Krystian117128146160152Isobel97111135154143Wang969910510198Mbutu108116120141139Lucy94109128143140Ravi9796948388Draw line graphs (all...
- Q Peter and Rosemary Grant's work on the Galapagos finches showedthatA) Darwin's postulate of inheritance can be proven with thediscovery of genesB) Darwin's postulate of fitness is not supportedC) Darwin's postulate...
- Q Please answer the following related to the concept ofevolution:A. What are three characteristics of the skeletons of vertebrateanimals (such as a dog, cat, horse, or primate) that suggest theyrepresent homologous...
- Q What is the science behind microarray methods and how it doeswork?
- Q Question 9 [11 marks / 11 minutes]This question is about regulation of expression of the trp operonby control of attenuation. Assume there are intermediate levels oftryptophan, such that TrpR (the...
- Q Orangutans are an endangered species in their naturalenvironment (the islands of Borneo and Sumatra), so acaptive-breeding program has been established by using orangutanscurrently held in zoos around the world. One...
- Q Question 8 [14 marks / 14 minutes]Design mutations of hypothetical protein-coding genes:a)Design a null mutation where the site of the mutation is outsidethe Open Reading Frame (ORF).Explain how your mutation...
- Q . A student cut three identical slices from a potato. Shedetermined the mass of each slice. She then placed them in labeledbeakers and added a different solution to each beaker....
- Q Which of the following is not a risk factor forhypertension?a.geneticsb.Agingc.High salt intaked.more than two alcoholic drinks a daye.Low calcium intake
- Q where should gigantopithecus be placed in the phylogenychart?
- Q After studying the textbook reading assignment, pick a specificorgan or structure from the systems covered this week. Describe howits form supports its function. Discuss the relationship of formand function in...
- Q The PCR reaction will be carried out with the following cycleconditions: 95 degrees C for 45 seconds, 65 degrees C for 45seconds, and 72 degrees C for 1 minute 45...
- Q First, explain the disadvantage of using VOCs as defense signalsand then list ways in which the VOCs might provide advantages thatoutweigh the disadvantages.
- Q Which of the following statements regarding voltage-gated sodiumchannels are TRUE? Choose all of the correct answers.They actively transport sodium against its concentrationgradient.They have two separate gating mechanisms: an activation gate...
- Q How would eukaryotic genes that do not have operons ensuresimultaneous expression of different genes?This is for my assignment can you please explain in a simpleway, and can you please advise...
- Q 3. In mice, genes for albinism (a), chronic inflammation (i),and reduced sense of smell (r) are linked.  You initiallycrossed a mouse that is homozygous dominant for all three traitswith a mouse...
- Q Family History Taking/Pedigree ConstructionAssignmentMary Jones Fictitious Family HistoryMary Jones, age 47, is presenting to the family practice office asa new patient due to a change in her insurance coverage. Herhistory...
- Q Summarize the general approach for identification of yourunknowns in one or few phrases.
- Q I got to the part in bold and I have no idea where to go fromhere.Step 1:Find the pair with the smallest distance.Step 2:Join them in one group and draw...
- Q Describe the action of NADPH-Oxidase. What reaction does itcatalyze? What is/are its substrates and the product(s) of it'sactivity?
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