Biology question and answers for July 29, 2023
- Q Your team has posed the question: Does MAD1 control themetaphase checkpoint? The hypothesis was: If MAD1 gives the signalto progress to anaphase after chromosomes have aligned, then agroup of mutant...
- Q In Drosophila black body (B) is dominant to gray (b) and longwings (L) is dominant to short wings (l). The F1 flies wereproduced by crossing a homozygous black, homozygous long...
- Q Explain the entire process of contraction in a skeletal muscle,starting with how the signal enters the muscle cell at theneuromuscular junction. Include all relevant ions, molecules,structures, and processes in your...
- Q Grains questions1) How many types of Resistant Starch arethere?2) What are other carbohydrates we eat that we mustferment, and why must we ferment them?3)What is the major problem with storing...
- Q What would happen in a cell that had a mutation that inactivatedthe protein WASP?
- Q 3. Mrs. Natasha gave birth to a boy child and her friend Mrs.Tina gave birth to a female child. When the babies are born, theenvironment is different both inside and...
- Q 1.First, discuss one scenario where vasoconstriction may be triggeredin the body. Then, discuss a second scenario where vasodilation maybe triggered in the body2. Why is a four-chambered heart critical to...
- Q which colonies represent prototrophs
- Q Ecological Advantages of Vegetable Production inNigeria(15 slides presentation )
- Q How are actin filament and microtubule assembly similar?
- Q (a) Describe how secondary structural elements fold toproduce(i) The Rossmannfold                      (ii) The four-helix-bundlemotif        (b) Explain why proline is more often found at the ends ofα-helices but not in the middle.
- Q Describe enzyme regulation: Direct vs Indirect, and eachsubtype. Describe what the regulatory molecules are, differentnames to describe each type of regulation (i.e. feedbackregulation, allosteric regulation, etc.), and what types ofreactions...
- Q Trematodes (flukes)- What is the difference between thedefinitive and the intermediate hosts, what organism is needed inthe lifecycle of all of these flukes, and where are these organismsfound?
- Q Which of the following statements is correct for primates ingeneral?Select one:a. Species that are pair-bonded have the minimum degree ofsexual dimorphism in body size.b. Multimale, multifemale groups tend to have...
- Q What change occurs in the bone to make conformationalabnormalities permanent? ( regarding foals)
- Q 1. What are discrepancies between calf intestinal mucosaalkaline phosphatase and human alkaline phosphatase?2. A solution was made up with p-Nitrophenyl phosphate (pNPP),0.1 M borate buffer at pH 9.5 and and...
- Q Dihybrid crosses of (virtual) fruit flies (Drosophilamelanogaster) were carried out at the computer lab at this course.The mutant alleles studied were “vestigial wing†(vg) and “ebonybody†(eb). The mutant Pâ€generation...
- Q Grains Question1) Pulses are considered under the category of grains.How do pulse grains differ botanically from cerealgrains?2) What is nutritious about the proteins andcarbohydrates in pulses3) Comparing white bread and...
- Q 12) The toxin produced by the bacterium Clostridiumbotulinum is a potent neurotoxin. Whenused in high doses, the toxin causes death through paralysis. Whenused in high doses,the toxin causes death through...
- Q For each of the following single strands of DNA, write thecorrect DNA counterstrand using the rules of Watson-Crick DNAstructure. To get the correct answer, your final structure musthave:i) Antiparallel strandsii)...
- Q Duchenne’s muscular dystrophy is a recessive X-linkeddisease (Xd). A cross takes place between a heterozygote normalfemale and a male with the disorder. A) Determine the genotypes ofthe parents. B) What...
- Q Genetic Mapping of Innate Immune Defects.Septic shock is a very dangerous medical condition that isdescribed in your textbook on page 135. It is essentially an acutehyper-activation of the macrophage innate...
- Q Your 5-month-old son wakes up this morning with a high feverand hoarse cry, with what looks like a highly inflamedthroat.  You decide to take him in for anexamination.  The doctor believes he...
- Q 1) What is the definition of a wholegrain? Two Examples?2)In terms of resistant starch or dietary fibre,what is thenutritional problem with the definition of wholegrain?3) Why do we want resistant...
- Q What is the relationship between dose, clearance,bioavailability and Steady State plasma concentration?i need it in 160 words please
- Q Â Â How do people become infected with Fasciolahepatica and what type of patient sample would be needed todiagnose this infection?
- Q literature review on plastic pollution report progress? Pleas withreference
- Q Starch structure questions1) Which feature of amylose leads to increased intensity of theblue colour of the amylose iodine complex?2) What part of the DSC endotherm gives the value ofGelatinisation Temperature?3)...
- Q A dog breeder has a female black Labrador Retriever that was oneof a litter of puppies from a mating of a yellow lab with a brownlab. If he breeds this...
- Q Describe how the Ames test can be used as a test for screeningpotential carcinogenic compounds. Include in your answer what anauxotroph is, why you need an auxotrophic mutant, limits of...
- Q The decline in sheep and lamb numbers in the U.S. can beattributed to multiple reasons and causes. Did you find any ofthese reasons or causes surprising? Why or why not?...
- Q List the possible levels of gene expressioncontrol in the typical embryo, i.e., from the DNA itselfto the final functional protein product. Explain, briefly, how eachstep could be a control point...
- Q Isa bajada, playa lake, playa, and inselberg created by streamerosion or deposition
- Q A: 56, B: 11, AB: 8, O: 25 . Draw Punnett Square:Assume the population is in Hardy-Weinberg equilibriumCalculate the allele frequencies:   p=      q =       r =Algebraic equation    Numerical freq.Expected freq of   A:B:AB:O:
- Q Please explain briefly about how the protein folding is wrongfor the Parkinson's disease and give a potential approach to treatit.Thanks
- Q BLAST results will indicate the percentage of genome comparisonamong known sequences as well as predicted sequences. A predictedsequence can best be characterized as a(n)a.computational analysis showing similarity to a known...
- Q Research and write about a USAGE for wearable and Implantablefor Heart and Parkinson's Disease. Provide as many details aspossible. Cite sources. Answer can also include how it impactbusiness, consumer or...
- Q The human gene Trl is maternally imprinted. Hannah has aheterozygous genotype include one wildtype allele and one copy ofthe mutant “1†allele, Trl+Trl1. Hannahexpresses the mutant allele. Describe the methylation...
- Q For natural selection to happen, there must be variation presentin a population. This is true because in a population withoutvariationSelect one:a. Change between generations can't happenb. If there is only...
- Q Assume that you are employed as a developmental biologist atNASA and the first returning mars explorer was found to have asmall organism from mars onboard. The organism had the usualhead-tail...
- Q List and describe synapomorphies forArthropods. Contrast the subclades:Chelicerata, Crustacea, Myriapods, and theHexapoda(insects).
- Q Discuss the evolution of the coelom and pseudocoelom. Whatadvantages do coelomate animals have over acoelomates?
- Q Why is it important that there is a “satisfactory linearportion†in the enzyme assay?
- Q 1.What does Streptococci look like under the microscope?a.strings of rodsb.strings/chains of spheresc.clusters of rodsd.grape-like clusters of spheres2.What is the total magnification when you used he 40Xobjective?a.400Xb.40Xc.4Xd.4000XQUESTION 3What was the purpose...
- Q Which of the following mutations would promote malignancy incells whose proliferation is inhibited by TGFBeta? a) Dominantnegative SMAD4 b) Loss of TGF Beta receptor II c) Overexpression ofSmad2Explain why it...
- Q a) Describe one measure of evolutionaryfitness.(c) Based on the data, identify the populationthat is likely to have the highest frequency of heterozygotes.Assuming random mating, calculate the frequency ofanimals in population...
- Q a tea strainerpermitting the passage of tea solution, butblocking the passage of tea leaves isisotonic permeabilityselective permeabilityactive transportor phagocytosisplesase explain answer
- Q In the boxes in the flow chart below, follow the flow ofcarbon atoms in the complete oxidation of glucoseby indicating the beginning and ending molecules in each of thesteps of...
- Q Hagrid, the Hogwarts gamekeeper, is fascinated with dragons. Atrue-breeding Common Welsh Green Dragon with green scales (b+),brown eyes (p+) and a smooth tail (s) was crossed to atrue-breeding Hebridean Black...
- Q Question 2 (5 pts). In roses, two gene loci onan autosomal chromosome are 30cM from each other. At locus 1, theE allele for red flower color is completelydominant to the...
- Q If fine glass needles are used to manipulate a chromosome insidea living cell during early M phase, it is possible to trick thekinetochores on the two sister chromatids into attaching...
- Q Discuss the infection of a bacterium by a virus. Include thesteps in the correct order from attachment to lysis. How does thisdiffer from the virus replication cycle in animals? Explain...
- Q Explain the importance of evidence-based practice with wristorthotic provision.
- Q Describe what is similar and what is different about metabolicpathways used by a lithoheterotroph versus a lithoautotroph usingALL of the following terms: electron donor, electron acceptor,reduced, oxidized, organic carbon, and...
- Q In class we discussed the calculation of the P/O ratio assuminga c-ring comprised of 9 subunits. How would the P/O ratio change(for both NADH and succinate/FADH2) if a particular mitochondrionhad...
- Q Diseases due to lack of gangliosides are..Malfunctioning of some channels leads to diseases. Give somespecific examples. And mechanism.Multi-drug resistant : why does it occur?http://www.guidetopharmacology.org/GRAC/ReceptorFamiliesForward?type=ICThe blood-brain barrier. How does it work/Many...
- Q The children of a 76-year-old man when visiting him noticedthat he was more forgetful and hadtrouble walking. Concerned that he had suffered astroke,they insisted that he visit his doctor. The...
- Q 1a. Many uridine molecules are inserted into some mitochondrialmRNAs in trypanosomes.  The uridine residues come fromthe poly(U) tail of a donor strand!  Nucleosidetriphosphates do not participate in thisreaction.  Propose a reaction mechanism that...
- Q What are the physical and chemical properties of the followingoils:- Almond oil- Fish oil- Coconut oil- Palm Kernel oilPlease provide the website where you get your information. Thankyou. Â
- Q A.) List two general ways that phosphorylation by a kinase canpromote intracellular signaling?B.) Explain why, in the absence of inhibitor, epinephrinestimulation results in the presence of beta arrestin band, which...
- Q In eurkaryote transcription, what is an exon and interon, andwhat is 5 capping and poly A tailing?
- Q What is the role of plasticity in development of the individual?How can two individuals with identical genotypes exhibit differentphenotypes?
- Q 1. Some bacteria can stop the activation of complement. Suggest2 things bacteria might do to complement proteins to stop orprevent complement activation. Describe how stopping complementactivation would protect the bacteria.
- Q a) What is the role of studies of other organisms inunderstanding the organization and development of the nervoussystem?b) What is the advantage for a species of developmental,individual variation?
- Q Please make an article about implementation of goodmanufacturing practice in food industry. Must be 500-700 words
- Q . Imagine you are studying a new cooperative breeding vertebratespecies and you find that groups of females can be either relatedor unrelated. What would you predict in terms of group...
- Q One likely reason that only microbes existed for the first twobillion years of life isa) high concentrations of ozone in the stratosphere.b) the absence of nitrogen in the environment at...
- Q 1.Symbiosis means “living together†and we talked about severaltypes of symbiotic interactions that happen in communities. NameONE type of symbiotic interaction and give me an example.2.What happens to energy as...
- Q Phenol red, a pH indicator, is used in the experiment todetermine respiration activity by showing CO2production.Table:Â Â CO2 Production by BeansBeansIndicator Color(Phenol Red)Conclusion(CO2 present or absent)GerminatingYellowPresentUngerminated-dryRedAbsentQuestions;1. How does phenol red work...
- Q Describe how chromosome rearrangements may be produce bybreakage or crossing over between repetitive DNA sequences
- Q 1)why does human population size concern ecologists?2) how is human population density at the root of allenvironmental problems?3) explain why in the future wars may fought over water?question: why did...
- Q A 68 year old women was admitted to a hospital because ofheadaches that began a month earlier. She was in good health, priorto developing severe headaches, vertigo, photophobia, lethargy, andforgetfulness....
- Q 6. The final step in the infectious process is diseaseproduction (or pathology). By what major mechanism can an infectionwith microorganisms result in disease? Give an example of eachmechanism for the...
- Q 1) The following DNA strand is a template strand of aprokaryotic gene.Transcription start siteis indicated by a bold“Gâ€.a) Underline the promoter region of this gene by a dottedline.b)Underscore the Pribnow...
- Q What are different mechanisms through which genetic variationoccurs? Describe the mechanism in detail in which a specializedplasmid plays a role for genetic variation to occur.
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