Biology question and answers for July 28, 2023
- Q what two key debates in bioethics did Henry Beecher contributeshape, and how? write about 100words
- Q Compare the life cycles of E. coli O157 and Chlamydia and name themain differences between them
- Q . A double-stranded DNA molecule with the sequence shown hereproduces, in vivo, a polypeptide that is five amino acids long. TACATG ATC ATT TCA CGG AAT TTC TAG CAT GTA...
- Q of the three types of life cycles which one occurs inhumans? what does it means?which type of cell in an organism is diploid?during prophase1 of meiosis1, an exchange of segmentsof...
- Q Define the role of descriptive epidemiology.Analyze specific host and environmental factors that mayincrease risk of disease susceptibility.Distinguish between disease (outcome) status and exposure statusvariablesDescribe the strengths of controlled clinic trials.Distinguish...
- Q 17. Which histone is required to compact the “beads on a stringâ€chromatin into higher-order chromatin structures such as the 30 nmfiber?18. Certain lysine amino acids (K’s) in the core histone...
- Q Imagine conducting the following experiment. Take a sample ofthe native folded peptide and measure the amount of peptiderequired to inhibit the activity of a potassium channel, say theKv4.2 channel, by...
- Q Summary of daphnia must be 5 paragraphs explaining how it getsaffective what happens to the organism? How does the heart rategets affective?
- Q name at least one ecosystem capital/ instrumental value aspect ofthese ecosystems:desertsmountains (rocks and wadis)palm forestghaf forestcoral reefsmangrove swampsseagrass bedsoyster bedssalt marshesrocky intertidal zonesfreshwater reservoirs (behind dams)
- Q This is BIOchemistry) For the appetite-related signalingmolecule MELANOCORTIN:a.) What is the specific function of that molecule?b.) What is the mechanism of that action (how does it do what itdoes)?c.) How...
- Q PHYLUM ANNELIDA :Compare and contrast Oligochaeta, Polychaetaand Hirudinea. What traits do they share (as annelids) and whattraits distinguish each class? ( Similarity vs Difference)PHYLUM PLATYHELMINTHES (FLATWORMS): compare and contrast thethree...
- Q Ecologists consider light energy, heat energy, and chemicalenergy when studying energy flow in an ecosystem. Using these threeterms, describe the flow of energy through an ecosystem. Make sureto name the...
- Q describe the components of endomembrane system:nuclearenvelope,endoplasmic reticulum,golgiappartaus,lysosomes,vacuoles,plasma membrane with their functionsand structure2-3 sentences each,in your own words pleasenot copy-paste from the internet not even one sentence can bethe same as...
- Q What influences whether your immune system remembers if you havebeen exposed to an infectious agent or not
- Q This is BIOchemistry) For the appetite-related signalingmolecule GHRELIN:a.) What is the specific function of that molecule?b.) What is the mechanism of that action (how does it do what itdoes)?c.) How...
- Q how is DNA changed during transcription? chemically?structurally? be specific
- Q Write about 75-100 wordsWhat does BiDil have to do with personalized medicine?
- Q Howis pH determined? What is the relationship between H+ concentrationand pH value?
- Q You decide to clone a gene using a plasmid vector featuringampicillin resistance and the lacZ gene. However, when youtry to grow the E. coli onto a plate containing X-gal andampicillin,...
- Q (This is BIOchemistry) For the appetite-related signalingmolecule NPY:a.) What is the specific function of that molecule?b.) What is the mechanism of that action (how does it do what itdoes)?c.) How...
- Q Why is it difficult for scientists to predict the rateof warming that Arctic regions will experience?
- Q A) Discuss plant strategies to avoid herbivoryB) Compare and contrast sit-and-wait foragers to activeforagers
- Q A) Define mutualism in general and differentiate betweenobligate and facultative mutualisms. Give examples.B) Discuss some plant-plant, plant-animal, animal-animalmutualisms
- Q What does “semi-discontinuous†DNA replication mean? Explain inwords how the lagging DNA strand is replicated in bacteria. Whatspecific enzymatic activities does DNA polymerase I have? Name eachactivity and explain its...
- Q 72 year old man, complaining of flu like symptoms, but without afever.He also has a rash on the right side of his body. The rashconsists of fluid filled blisters is...
- Q can you please explain modes of transmission ofe.coliand please please explain virulence factors of E.coliin simple details.thank you so much
- Q Describe the ecological topic and relates the most to thezooinverse project that you conducted.Full credit will be awarded to answers that contain a detaileddefinition of the ecological topic as well...
- Q One factor that makes it hard for pathogens and hosts to evolve\"perfect\" attacks or defenses is that natural selection acts onexisting systems, which means that altering a system to fit...
- Q Which living organism has a primitive structure and which onehas an advanced? (Bacteria; Animal)
- Q What is SOD and catalase? What reaction do theycatalyze?
- Q (This is BIOchemistry)A patient who is diabetic decides to go on the beef jerky diet.She eats almost nothing other than beef jerky and similar driedmeat products. She does drink plenty...
- Q Explain in words what the ubiquitination reactions are and howthey function. What are the ubiquitination enzymes, where are theyused in the pathway and what are their function? Explain howproteins starting...
- Q An E. coli mutant isolated is simultaneously unable to utilize alarge number of sugars, e.g. lactose, arabinose, maltose, as carbonsource.  However, genetic analysis shows that each of theoperons responsible for metabolism...
- Q Define integrated control in your own words. What element ofintegrated control is the most challenging? Why? What are thechallenges facing the development of an effective malariavaccine.
- Q How does antibiotic resistance happen (from molecularmechanisms to HGT to societal factors)?
- Q Question 3a:Translation is another name for protein synthesis. How does theribosome know that it should terminatetranslation?Describe briefly what happens to terminate translation.Question 3b:i) What does it mean when someone says...
- Q Which of the following is true about interferon?It is released by uninfected cells during a viral infectionIt is produced by virally infected cells during a viralinfection, whereupon it inhibits further...
- Q SDS-Page Questions : Please answer all questions &explain.1.Can I use SDS- page to diagnosis the urea cycle disorder :Arginase deficiency?2.Would the mutated arginase have a different MW compared to thenormal...
- Q make a tree for the Chordates – include changes here too
- Q 1.What structure of the brain is responsible for adjusting the rateand depth of the breathing cycle? Why might the breathing cycle beadjusted?2. Discuss the process of positive negative pressurebreathing, Identify...
- Q In alpine and tundra habitats, plants have to cope with severeenvironmental conditions (cold and wind) during winter. In thesummer, they produce extreme floral displays in order to attractpollinators, since the...
- Q Why are these materials typically used ?? Please answer for bothmaterials please.1.Reagent kit for Probe Labeling2.Oligonucleotides for PCR amplification
- Q From the bloodstream, siRNA will undergo initial distributionthrough a circulatory system in a few minutes. siRNA undergoescertain pathways to get eliminated from blood. It will getaccumulated in the liver and...
- Q describe the components of endomembrane system:nuclearenvelope,endoplasmic reticulum,golgiappartaus,lysosomes,vacuoles,plasma membrane with their functionsand structure2-3 sentences each,in your own words pleasenot copy-paste from the internet
- Q Imagine you identified what you believe to be a new,previously-unidentified spe- cies of bacterium. You thereforecultured the bacterium in the lab, purified RNA from the bacteria,made cDNA from the RNA,...
- Q DNA EXTRACTION & PURITY PROTOCOLAdd a small piece of peeled banana (2-3 cm) and 12mLextraction buffer (NaCl & Sodium Citrate) into the beaker.This buffer contains salts necessary for the precipitation...
- Q Why do most human bodies tan when exposed to UV light? Explainthe possible relationships between ultraviolet light, vitamin D,folic acid and melanin production with regard to the evolution ofvarious skin...
- Q What is allomothering and how is it manifested? Use no less thanthree examples (at least one human and one nonhuman)? What are themost important benefits attributed to social units that...
- Q Question 2:Translation is another name for protein synthesis. There arethree steps that take place repeatedly during elongation.a) Give the name and a short description ofwhat happens during the first step...
- Q Ear lobes: detached ear lobes (dominant): 62,attached ear lobes (recessive): 38.Draw PunnettSquare:                              Assume the population is in Hardy-Weinberg equilibrium                                                                     Calculate the allelefrequencies:       p=         , q =                                                                      Expected frequency of EE:                                                                                                           Ee:                                                                                                           ee:
- Q Compare and contrast 10 structural and genetic characteristicsthat distinguish between “Prokaryotic†and Eukaryotic cells. Besure to define/describe the significance of the characteristicsthat you mention.
- Q Discuss evolutionary factors that led to the emergence ofPEPcarboxylase. (Mention C4 and CAM plants)
- Q Compare and contrast 5 differences between the humoral andcell-mediated responses of the Acquired Immune System to pathogeninvasion. What cells and protein/chemical factors are involved ineach during a successful response? How...
- Q List 5 molecules and cell types that are shared and interconnectthe Innate defenses of the body with the Acquired/Adaptive Immunitypathways. Define the defensive functions of each shared componentand explain how...
- Q 1.Describe how parasites may exert negative frequencydependent selection on their hosts.2. Discuss how evolution of two focal species isexpected to differ under Müllerian mimicry vs. Batesianmimicry.
- Q Compare in detail 2 microbial diseases of each of the followingorgan systems: skin, nervous system, and blood/lymphatic systems.How does a successful pathogen gain entry, invade host tissues (ifapplicable), and damage...
- Q Lys residues stabilize the ?-helical conformation when they arethe carboxyl end more than when they are at the amino end. (a)Briefly explain why, using chemical structure(s) to illustrate yourreasoning. (b)...
- Q Alpha thalassemia is a blood condition resulting from abnormalhemoglobin production, due to loss of function of copies of eitherHBA1 or HBA2 genes. These genes are very similar, and forsimplicity’s sake...
- Q Explain what an activator is and how such proteins can regulategene expression. You should include in your answer details of thegenetic elements activators can bind to and outline two differentmolecular...
- Q Cancer cells grow uncontrollably and do not die. Do you thinkthat the following defect would lead to a cancerous cellphenotype?  \"A gain of function mutation in growth factor signaling pathwayRTK that...
- Q Compare the responses by serum complement (alternative pathway;3 responses) to antibody- mediated responses (5 responses) tobacteria in the bloodstream. What host cells are involved in eachresponse, and how are bacteria...
- Q Delivery systems that are not eliminated by degradation,phagocytosis or glomerular filtration can leave the bloodstream bycrossing the endothelium to reach target tissues. This occurs mostreadily in tissues with discontinuous endothelia,...
- Q 14. What statement is true ofprions?a) Prions are produced by viruses.b) Prion diseases can be prevented by cooking your meat.c) Prions are abnormally shaped proteins that cause spongiformencephalopathies.d) There are...
- Q What recommendations would you make to ensure that theelectronic health record could successfully provide data capable ofmeeting public health’s requirements and needs? Support yourresponse with at least 2 academic sources.
- Q Describe & diagram a basic bacteriophage reproductive cycle.How does this compare to infection by animal viruses? Describe atleast 3 special adaptations, including latent phases, that someanimal viruses have to avoid...
- Q dnastructure
- Q Explain how the maternal effect effects development and how youtest that?
- Q Assess the following argument by analogy: Go through each of the3 checks, and then write your conclusion about the analogy (strongor weak).Check #1: Specify exactly what is being comparedCheck #2:...
- Q 2) discuss the current barriers to gene therapy.
- Q In your own words (and approximately 250 words), explain whyadult haemoglobin (HbA) is better suited for its job as theoxygen-carrying protein in red blood cells compared with myoglobinand the sickle...
- Q Discuss the risks and benefits to society assoviatedwith the use of devices that produce radiation ( ionizing andnonionizing).2.Describe the ocular effects on nonionizing radiationin optical spectrum.
- Q 1.Why is lead contamination a concern forenvironmental health experts?2.State 2 incidents of mass poisoning of humans that involvedarsenic.3.What are some of the medical uses of mercury? And what is theaspects...
- Q Familial Mediterranean fever is an autosomal recessivecondition, with high carrier frequencies known for multipleethnicities:Armenian 1 in 8Â Â Ashkenazi Jewish 1 in 13Sephardic Jewish 1 in 14Turkish 1 in 8What are the...
- Q Compare and contrast the mechanisms and locations of the effectsof peptide and amine hormones and steroid hormones. (Answer intable form if you wish.)
- Q Phenal red glucose, lactose, and sucrose fermentation tests arevaluable because, select all that applya. Helps distinguish species of bacteria that are different, butlook the same under the microscopeb. Characterize metabolic...
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