Biology question and answers for September 10, 2023
- Q Guardian intestinalis and Trichomonas vaginalis lack mitochondria.How is each transmitted, what does each cause,and how does theorganisms obtain energy without mitochondria
- Q There are many early evolutionary steps of photosyntheticorganisms from the appearance of photosynthesis to various types ofphotosynthetic apparatus in the eukaryotic algae. Explain ten stepsand how each advances a certain...
- Q 1. Describe the purpose of diffusion experiment.2. Describe the purpose of osmosis experiment.3. Describe the observation/results of the osmosisexperiment.
- Q what is the bioactivity of n-phenylphthalimide in the humanbody?
- Q research papers on measles and Subacute sclerosingpanencephalite
- Q What are the predominant determinants of the EPP onsetand duration following a presynaptic action potential?
- Q 1. What does the position of the testis tell you aboutspermatogenesis? Can you follow the path that sperm take as theyexit the testis? Trace the vas deferens as it passes...
- Q Retrieve the gene sequence of mitochondrial ATPase subunit 6from Atlantic hagfish (Myxine glutinosa). Draw a dotplotagainst the homologous gene from sea lamprey (Petromyzonmarinus), and dogfish.
- Q What are the stages of mitosis
- Q Your response to the question should be long enough to addressthe question but limited to no more than two pages. These are essaystyle questions therefore you should give essay style...
- Q 2)Certain chest deformities prevent normal expansion of the chest.Explain why?3) A male patient presents with the following respiratoryvolumes and capacities TV= 500ml, ERV=600ml,IRV=2700ml.What is thepatient VC? Are this values normal?...
- Q What phenotypes would you predict for a bacterium with amutation in cheA (kinase)? Explain the reasons for the expectedphenotypes such as presence of chemotactic​ reactions, motility, ormovement such as swimming,...
- Q Define polygenic and pleiotropic traits and explain theirsignificance for researchers’ efforts to link human genotypes tophenotypes. Should genes be patented? Why or why not?
- Q Stem cells are currently being used to treat some forms ofagerelatedmacular degeneration (AMD). When placed in the retina,these unspecialized cells divide and assume the roles of thedamaged retinal cells. How...
- Q Explain the key conditions for adequate bonedevelopment and maintenance.
- Q 1) The DF508 allele, which causes cystic fibrosis inhomozygotes, occurs at a frequency (0.02) in European populationsthat exceeds the background mutation rate in humans. This suggeststhat what process might be...
- Q Puromycin is a powerful inhibitor of protein synthesis. It is ananalog of the 3’ end of aminoacyl tRNA. When puromycin is added toa cell-free system containing all the necessary machinery...
- Q explain \"dynamic\" continuity in endoskeleton andendomembrane system
- Q Biological Role of Nardonella Endosymbiont in ItsWeevil Host.(Kuriwada et al 2010). Find online to answer.http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0013101(in your own words):1. the research question / hypothesis of the paper.  2. Explain the significance of...
- Q concept of horizontal gene transfer in bacteria and how it canoccur through a couple of different routes. Name two routes oftransfer and why this occurring is particularly concerning inclinical settings
- Q Your response to the question should be long enough to addressthe question but limited to no more than two pages. These are essaystyle questions therefore you should give essay style...
- Q Your response to the question should be long enough to addressthe question but limited to no more than two pages. These are essaystyle questions therefore you should give essay style...
- Q Your response to the question should be long enough to address thequestion but limited to no more than two pages. These are essaystyle questions therefore you should give essay style...
- Q Your response to the question should be long enough to addressthe question but limited to no more than two pages. These are essaystyle questions therefore you should give essay style...
- Q Describe the role of voltage gated sodium channels in actionpotentials that travel along the sarcolemma.
- Q The Na –glucose symport system of intestinal epithelial cellscouples the \\"downhill\\" transport of two Na ions into the cell tothe \\"uphill\\" transport of glucose, pumping glucose into the cellagainst its...
- Q 6. BSA has the following amino acid profile compared with theaverage of known vertebrate proteins:AABSAAverage ProteinPhe4.6%4.0%His2.7%2.9%Lys10.1%7.2%Arg3.9%4.2%Trp0.3%1.3%Tyr3.4%3.3%Based upon this data, is BSA a good standard to use in theBradford assay? Explain...
- Q a) Three nucleotides are inserted into a protein-encoding gene.The insertion occurs such that the mRNA transcript has anadditional 3 bases (NOT a stop) right next to the stop codon (onthe...
- Q 0 ptsMotility,via flagella, is metabolically expensive for the cell.Microbiologists have noticed that many motile cells have storagepolymers in their cytoplasm. Also while not all motile cells areGram negative, the majority...
- Q Answer the following question1.Does the amount of enzyme influence the rate of reaction ?2.Does the temperature of the solution influence activity of enzyme?3.Boiling an enzyme before a reaction does not...
- Q How does the stomata control transpiration in plants?
- Q 1) Which of the worms (flatworms, roundworms, orearthworms) shows segmentation? What are the advantages of having asegmented body?2) Describe the adaptations that haveallowed squid to evolve a predatory, highly activelifestyle.
- Q Ubiquitination relies on 3 enzymes E1, which activate ubiquitin;E2, which are the conjugating enzymes, and E3 enzymes, which helpguide the E2 enzymes to specific substrates. In any given cellthere are...
- Q Enzymes (or their production) are often regulated in a negativeor positive way, depending on whether they are related to anabolic(building) or catabolic (breaking down) reactions. Please describe,in your own words,...
- Q 1.)A.)The lac operon is inducible by the presence of lactose.Loss-of-function mutations in the lacI gene, which encodes the lacrepressor (pick all that apply):A.)slow down the isomerization of lactose into allolactoseB.)decrease...
- Q Skeletal system 1.list the major organs in this body system. 2.Describe ( in detail) the normal function of this body system. 3.Identify and explain about 3 common diseases that affect...
- Q Suppose gene A is on the X chromosome, and genes B, C and D areon three different autosomes. Thus, A- signifies the dominantphenotype in the male or female. An equal...
- Q Write the definition of Endocytosis( include all three of them) andthe definition of pinocytosis.Draw the diagrammatic representation of endocytosis andpinocytosis.
- Q You want to use retroviruses to deliver DNA to a type of cellsto promote certain phenotype. Before you start, you want toestimate the delivery efficiency. The cells are spread on...
- Q 1) How does cellular respiration impact the observed rate ofphotosynthesis on algae beads?2) look up current ocean pH values. How do the current valuescompare to those from previous years? Considering...
- Q 1.Write characteristics of Active transport with example.2.What do you mean by exergonic and endergonic reactions?Explain with examples.3.Briefly describe competitive and non-competitiveinhibitors.4.What is the effect of temperature, pH and salinity onenzymes?
- Q 1.    In the summer of 2016, a large anthraxoutbreak struck Siberia. Dozens of people were hospitalized, and a12-year-old boy died. It was determined that it was caused by aheat wave...
- Q 1. Is the activity of penicillin dependent on bacterial celldivision?          a.Is it dependent on the type of cell wall (Gram +/Gram-)?      b. How does osmoticenvironments influence the effects of penicillin...
- Q After neurotransmitter release what are all the potentialprocesses that neurotransmitter could experience? Include the twoways the neurotransmitter could be deactivated. What would happenif one of those mechanisms were not functioning? Â
- Q Title:An Experimental Test of the Effect Adult Marsh Rush Plants(J. maritimus) Have On Seed Germination in an Upper andLower Marsh.General Hypothesis:The presence of marsh rush (Juncus maritimus, a species ofplant)...
- Q What are the general differences between granulomatous amoebicencephalitis and PAM? [etiological agent, progression,susceptibility]
- Q A researcher administers sarin, which is known to block theeffects of acetylcholinesterase. How would this affect thefollowing?:A. Acetylcholine levels in the synaptic cleft?B. Acetylcholine levels in the presynaptic terminal?C. Acetylcholine...
- Q IMMUNOLOGY QUESTIONOrgan transplant recipients take medications to suppresstheir immune system for a lifetime. What specific type(s) of immuneresponse are they suppressing? What types of infections are theymost susceptible to? Why?
- Q Please answer all2. Create a flowchart to represent each step in an infectiousdisease process.3) List the patterns of transmission of communicablediseases.4) Define healthcare-associated infection, listing the mostcommon types, and the...
- Q  Describe the relationship between functional groups andmacromolecules.  Compare and contrast different types of isomericcompounds.  List the different kinds of biological macromolecules. What is the special type of...
- Q What are the stages the membrane potential goes through duringan action potential? Describe each stage in terms of the changes insodium and potassium ions inside the cell. Name and describe...
- Q 5. Describe the different ways that C4 and CAM plants carry outphotosynthesis, when compared to C3 plants; and then explain ineach case why these differences evolved.
- Q “Synonymous and nonsynonymous†sites essay questionExplain why synonymous sites typically evolve faster thannonsynonymous sites.
- Q Here you will be plotting results and commenting in writtenform. Hence, you must show your work in the form of some numbers,some plots, and some simple statements. You may write...
- Q Why is using aseptic techinque important?Why is a plate containing 30-300 CFU's more useful forcalculating the concentration of the original culture tube than aplate with only two colonies?
- Q “Introns and Exons†essay questionExplain why the average rate of evolution differs betweenintrons and exons, and why this is important for choosing geneticmarkers to be used in phylogeny construction.
- Q “Florida mice†essay questionDescribe Hopi Hoekstra’s evidence for how coloration forAtlantic coast beach mice of Florida evolved independently fromcoloration for Gulf coast beach mice of Florida. Be specific interms of...
- Q 3. Discuss fermentation: Name the two types of fermentation.Give the end products of each type. Summarize the net energy gainof each type. Give examples of cells which carry out each...
- Q what is the proper training principle for clients wanting tocompete in a racewhat method of exercise should be done first
- Q Purple Team :  Discuss preoperative and postoperative care of therhinoplasty patient and possible postoperative complicationsof a patient undergoing a rhinoplasty. Gold Team : Discuss the signs and symptoms that a patient willexhibit with tuberculosis...
- Q Considering the Metabolic pathways of Pseudomonasaeruginosa:A. Briefly evaluate the metabolism of the organism. How do theymake PMF, ATP and reducing power? Do they have a broad or a narrowmetabolic capacity?B....
- Q Lab 5: Practice Dilution ProblemsYou have a stock solution that contains 24 mg/ml of protein. Youwant to make a set of standards with the followingconcentrations:                 8 mg/ml                 4 mg/ml                 2 mg/mlYou need a...
- Q Matching1.    AstrocytesA. Sheet-like cancer of epithelial origin2.    ImmortalityB. Can cause senescence in dividing cells3.    Squamous carcinomaC. Increases risk of breast cancer4.    Metaplasia (example)D. Decreases risk of breast cancer5.    AdenocarcinomaE. Associated with stomach...
- Q You are a microbiology lab technician and you need to quantifythe viable cell concentration in your stock culture beforebeginning an experiment. Since you do not know the range, youperform a...
- Q What roles can glial cells play?Immunity and mechanical supportMechanical support and ionic - balance of the extracellularspaceIonic balance of the extracellular space and myelinationand a b onlya, b and c
- Q Custom made primers are shipped as DNA powders. A studentreceived a tube containing 19.5 nmoles of primer. To make 75 µMprimer solution, she needs to add ___ µl water to...
- Q what is the evidence supporting animal evolution froma protist ancestor? be sure to identify the protist ancestor andsupergroup of both the protist ancestor and animalgroup?                                                                   2. if hydra live as a...
- Q Howthe different polymers of the cell wall are synthesised andincorporated into the cell wall.
- Q 1. Draw the peptide DCTEVKKR at a ph 7.4 in the transconfiguration.2. Consider the peptide from #1 for the questionsbelow.  Calculate the pI of the above peptide. (I recommend showing yourwork...
- Q What is the principle, purpose of the gram stain and theapplications of the acid-fast, spore, and negative stains?Explain!
- Q RegionFunctionProteinDendriteSomaAxonAxon terminalComplete the table above on the regions of the neuron, theirprimary function(s), and a specific protein that supportsthat function. Explain your choice of protein.
- Q What is the bacterial biofilm? What are the conditionsthat favor its formation and its disassembly? And what is itsmedical importance?
- Q What is Eutrophication and how it can impact themicrobial diversity in ecosystems?
- Q Reflect on the following questions in a 150-300 wordresponse:How do cooperation and sociality in non-human primates compareto humans? In what ways are they similar? In what ways are theydifferent? What...
- Q EXPLAIN how the PMF is produced and Describe TWO ways it is usedto do work.
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