Biology question and answers for September 07, 2023
- Q Although mutations in the coding region of a genes can lead tochanges in protein sequence (non-synonomous, nonsense, frameshift)there are plenty of mutations in non-coding regions within thegenome that can alter...
- Q Which of the following is a difference between prokaryotic andeukaryotic gene expressionGroup of answer choices1)Eukaryotes have basal transcription factors not part of theholoenzyme2)Eukaryotes produce an immature mRNA3)Trancription and translation can...
- Q Tiffany is worried about her newborn son. Ever since she broughtCaleb home from the hospital it has been so hard to get him to eatand he seems to be breathing...
- Q Determine True or False for the followingstatement  1. Archaea and cyanobacteria have DNA in their nucleithat directs protein synthesis.If you see a phylogenetic tree that illustrates adaptiveradiation, it is reasonable to...
- Q The reinforcement hypothesis makes which specific “predictionsâ€regarding divergent populations coming back into contact with oneanother? Are these predictions easily testable throughobservational studies?
- Q Compared virus sequences with human and avian. they are over95%similiar.Based on your results (which of course are limited—it would benecessary to do many more comparisons in reality), do you thinkthere...
- Q During aPCR reaction, what would be the function of TaqDNA polymerase?extends the primers into full-length PCR product (i.e. copiesthe DNA)unwinds dsDNA templateensures DNA is negatively charged for gel electrophoresiscuts DNA...
- Q Enzymes arekinetically important for many of the complex reactions for plantand animal life to exist. However, only a time amount of anyparticular enzyme is required for these complex reactions to...
- Q Explain how the major and minor grooves in DNA are involved inbinding of enzymes and other proteins.
- Q Describe the role of V(D)J recombination in anti- bodydiversification. Explain why nonhomologous end joining is anadvantageous mechanism to repair the double-stranded DNA breaks(fusion of the coding segments after the hairpins...
- Q Mapping traits to a chromosomeFruit flies have four chromosomes. Fruit flies also have anumber of body markers that are useful for mapping genes to givenchromosomes. Chromosome I is the X...
- Q You are studying the source of a new virus that has recentlyinfected humans. You suspect that the virus was transferred fromoter primates (they exhibit a similar infection), specificallychimpanzees, gorillas, or...
- Q in 2 paragraphs, please expkain ...how do bothforensic pathologist and forensic anthropologist use skeletalremains?
- Q you are purifying enzyme Z. You think that the preparation isnot pure, based on the following data(choose all correct answers):Group of answer choicesthere are three bands on an SDS-PAGE gelthere...
- Q 1) Self-pollination would be avoided by allexcept which of these mechanisms?a)Pollen is released before the stigma in the same flower isreadyb)Plants recognize and reject their own self-pollination(S-gene) alleles.c)Plants are dioeciousd)Pollinator...
- Q You have a bacterialinfection for which your doctor prescribes you a ten-day treatmentof antibiotics. You take the antibiotic for three days and stopbecause you feel better. Briefly describe what you...
- Q Competition can function as a mechanism if density dependentpopulation regulation. How might scamble and contest competitiondiffer in their effect on population growth (regulation)?What condition must hold true for territoriality to...
- Q A 17-year-old boy came to the emergency room after a roadtraffic accident with multipleinjuries. Upon initial check-up, he has multiple lacerations on hischest, head and rightforearm. On examination, he is...
- Q Give an example to discuss the X-linked human phenotypes.Please discuss the structure and function of telomeres and theirinvolvement in cellular aging.Explain how PCR amplifies a particular sequence of DNA.
- Q How are cranial nerves and spinal nerves similar? How are theydifferent?2. What components come together to form a spinal nerve?What’s the difference between a dorsal root, ventral root, dorsalprimary Ramos,and...
- Q This is for a Stem Cell ClassSuppose you are tasked with developing a cell therapy for thetreatment of COVID-19. Briefly describe:a) what cells you would use and why?b) how you...
- Q In class, we discussed how H146 of the β -chain ofnormal adult hemoglobin ends up in close proximity toD94 on the same chain when oxygen is delivered to thetissues. In...
- Q 1a. There are no fossils of ancient prokaryotes, nor of theearly eukaryotes. No one was present to observe events first-hand,yet we know that eukaryotes arose from an endosymbiotic eventbetween two...
- Q QUESTION 40All of the following are part of the Social-Ecological Modelexcept for?OrganizationalIndividualPublic PolicyNutrition Panel2 points   QUESTION 41Health claims such as “reduces heart disease†must be evaluatedby the __________ before it...
- Q Epigenetics centres on inheritable phenotype changes that do notinvolve alterations in the DNA sequence, indicating the influenceof environmental factors. Based on content covered inlectures, discuss the mechanisms implicated in the...
- Q There’s a worldwide outbreak of an unknown infectious viraldisease. However, in your country thousands of patients areadmitted to a hospital daily due to severe headaches and pulmonarycomplications and this are...
- Q With the aid of a suitable diagram, explain the biologicalhazards of a laser and the necessary safety precautions when usingthe laser.
- Q Describe and ecological study in which using thelincoln-peterson or Schnabel Index might be useful?
- Q Each of the following is associated with haemophilia A or BEXCEPT:Select one:a. Recurrent haemarthroses in a young boyb. Normal prothrombin timec. Prolonged prothrombin time and normal activated partialthromboplastin timed. Prolonged...
- Q Explain cellulose biosynthesis - substrate, catalytic process,resulting structure (primary, secondary, tertiary (supramolecular)cellulose structure)
- Q You are trying to calculate the map distances between threegenes in Dragonflies. The gene extrawings (ex) produces anextra pair of wings and is recessive to the wild-type four wings(ex+). The...
- Q How are environmental factors used to control microbal growth?Give some everyday examples.
- Q Which of the following are used as diagnostic signs ofmyeloma?Select one:a. Anaemia and recurrent infectionsb. Anaemia and fractured bonesc. Recurrent infections and kidney failured. Bone pain and increases in prostate...
- Q QUESTION 5The experiment conducted by Andre Jagendorf with isolatedthylakoid membranes proved thatpossible solutions:Blue and red light, but not green, caused photosyntheticproduction of oxygenThe ATP synthase complex functioned as a molecular...
- Q The final product of the Calvin Cycle (the product that EXITSthe Calvin Cycle, assuming successful carboxylation) is3-phosphoglycerateglyceraldehyde-3-phosphateRibulose-1,5-bisphosphatesucrosestarchTo be in an active state, several enzymes of the Calvin Bensoncycle requireAn oxidizing...
- Q What organisms that could invade during phagocytosis andhow?
- Q What is the best immunological assay for each of the followingsituations? For each situation, name the assay, describe how itworks, and why it is appropriate. Assume in both cases that...
- Q Can someone please explain membrane potential, diffusionpotential, and equilibrium potential and any way they may berelated? Also, what is each thing dependent on, and what are theunits used to measure...
- Q QUESTION #1What was thepre-genome sequencing estimate for the total number of genes in thehuman genome and how many genes were discovered once sequencing wascomplete? Why do you think there was...
- Q when mixing two different cashew milks by the same brand (Silk)okay to drink? and ehy does it make coffee look different whenadding the mixed milk to coffee?
- Q For a thermophile, how do their proteins, DNA and cell membranediffer from mesophiles or psychrophiles?
- Q Answer whether the following statement is TRUE or FALSE. IfFALSE, rewrite the sentence to be TRUE. (15 pt)A. Reproducible set of DNA fragments will be produced every timea restriction endonuclease...
- Q No fossils of Homo neanderthalensis have been found inAfrica, but many African populations have traces of NeanderthalDNA. If Neanderthals were never in Africa (which is a possibility,though fossils may yet...
- Q 1. A gene can have many alleles. Why is it that any given persononly carries two copies of each allele? Pick one belowThis is a function of co-dominance,or incomplete dominance.During...
- Q Some environmentalists claim that the ways we raise and collectanimals and fish for food are fundamentally unethical. They pointto the suffering of animals within the factory farming industry,the pollution caused...
- Q Match each term to its correct definition or description. Eachdescription might match more than one term.    -     A.    B.   cytokinesis in plants    -     ...
- Q From the table below, use a simple linear regression analysis toestablish the relationship that may exist between a) number ofconfirmed cases and deaths; b) number of confirmed cases and numberof...
- Q Biochemistry QuestionYou have developed a new chemotherapeutic that acts tocompetitively inhibit a kinase you are targeting in cancer cells.In clinical trials, the drug is effective in killing the cancercells, however...
- Q Mini Essay :I 1 page, using 12-point Times New Roman Font and1.5 spacing, please1. Describe the five basic mechanisms of antibiotic actionagainst bacterial cells. Give examples of drugs that are...
- Q Compare the coefficient of relatedness between brothers andsisters in diploid organisms versus those organisms who arehaplodiploid. What differences would this lead to in terms ofaltruistic behaviors?
- Q 1. For which reason might single nucleotide differences lead tovarying phenotypes? For what reason might a single nucloetide notlead to differences in the expression of certain phenotypes?2. What do you...
- Q Describe the process of synaptic transmission. Begin your answerby describing how the action potential occurs. End your answer bydescribing binding of neurotransmitter to receptors.
- Q Considering the newly discovered Coronavirus COVID-19, pleaseanswer the following questions.How the COVID-19 virus affects the respiratory system and give abrief description of the disease process. How might this affect aspirometry...
- Q Discuss the differences/similarities between antiporter,uniporter, and symporter carriers. Make sure your explanationdiscusses gradients of each solute and direction of flow. Be clearhow structure allows for the mechanism of transfer. How...
- Q What is the efficiency of energy retention for glycolysis ifcleavage of a typical carbon carbon bond releases339kJ/mol. Â
- Q does Nerve Growth Factor (NGF) treatment of PC12 cells increasein MAPK phosphorylation or increase in MAPK protein? Or does itincrease both?
- Q In your own words please and be asspecific.Compare the life cycle of Eimeria tenella with that ofMonocystis lumbrici.
- Q A boy with Klinefelter syndrome (47 chromosomes, XXY) is born toa mother who is phenotypically normal and a father who has theX-linked skin condition called anhidrotic ectodermal dysplasia(AED). The mother's...
- Q COMPUTER GENERATED GRAPHING & TYPED ONLY1. (one point) A man who has type B blood fathers offspring witha woman who has type A blood. Their first child, a girl, has...
- Q Please answer all parts of these questions by using thetopic !!Selective toxicity Prompt:Explain the concept of selective toxicity. Explain the ways thatantimicrobial drugs affect pathogens. Identify which categories ofdrugs are...
- Q In the experiment by Otto Loewi, stimulation of the vagus nervecaused an isolated frog's heart to slow its beating (an effectcalled bradycardia). This effect was ultimately shown by others tobe...
- Q Suppose you were given the task of estimating the density of twoplant species in a field. Based on the life histories of the twospecies, you expect that the spatial dispersion...
- Q What are Platyhelminthes (which organisms)? What are they knownto be significant for in terms of animal evolution? What are theireyespots used for? Can they see well out of them?
- Q Write a full description of the importance and different typesof fermentation carried out by bacteria.
- Q 1. Supplementary motor cortex2. Premotor cortex3. Basal ganglia4. Cerebellum5. Parietal area of the cerebral cortex6. Spinothalamic pathway7. Corticospinal tract8. Dorsal root ganglion9. Dorsal Column pathwayQ1. Which structure or region is...
- Q Red-green color blindness is caused by a mutation in a gene onthe X chromosome. Xa is the recessive mutant allele thatcauses color blindness; XA is the dominant, functionalallele. You meet...
- Q For a diploid mouse cell (40 chromosomes), state how many copiesof each are present at the following cell cycle stages:Cell cycle stageNumber of chromosomes per cellNumber of sister chromatids per...
- Q Describe the fate of a single molecule of glucose as it goesthrough glycolysis and exits the Krebs cycle. Include the inputs toeach reaction and all end products including all created...
- Q Molecular dynamic simulation of protein- ligandcomplex.How do I set up a molecular dynamic simulation for a protein-ligand complex with a cobalt in the 2++ state? In other words, arethere topology...
- Q Describe the ways in which meiosis contributes to geneticdiversity within a population in which 2n=20.
- Q what are the steps you will take to isolate andidentify a salmonella sp.
- Q You isolate nuclei from three different eukaryotic species. Youtreat the samples in exactly the same way (adding same amount ofenzyme, buffer and time) to partially digest the chromatin withmicrococcal nuclease,...
- Q Compare and contrast the process of substrate-levelphosphorylation, oxidative phosphorylation, andphotophosphorylation. Provide one example of how each is used in abiological cell.
- Q 3. Assume that a bacterial culture is grown on medium containingradioactive thymine until essentially all of the thymine in the DNAis radioactive. Then the bacteria with labeled T were washed...
- Q In a dialysis experiment with a dialysis full of glucose/starchsolution in a beaker of water (tested starch with iodine)- Whichsolutes would cross the membrane? Why were these solutes able tocross...
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