Biology question and answers for September 12, 2023
- Q A. Explain whathappened to the buffalo and wildebeest populations in terms ofpopulation growth models.B. What do you expectwill happen to these populations going forward?
- Q Topic: Sizing DNA fragments via standard curves using horizontalelectrophoresisBetween a low quality ladder (DNA marker) and high qualityladder (Kb ladder), which one produces more accurate estimates on astandard curve? Why?
- Q 1-what is the basic structure of a cell 2-what are the threefunction of the cell membrane 3-what are the three major biologicalmolecules that make up the cell membrane and what...
- Q In Chapter 8, we saw that ATP is the currency of the cell,powering almost all the work carried out in a typical cell. Inalmost all eukaryotes and aerobic prokaryotes, the...
- Q Background Information:In the nervous system, the brain processes information bytransmission of electrical and chemical signals through a networkof neurons. These signals travel through synapses which connect twoneurons. Neuroligins are cell-adhesion...
- Q Contrast the hypotheses that biogeographers conducting researchin either 1918 or 2018, respectively, would use to explain thedistribution of closely related plants and animals in SouthAmerica, Africa, and Australia.
- Q A third haploid pink strain (strain # 3) of yeast is isolatedand known to be the MAT a sex. Nothing else is known about thisstrain, (i.e. we do not know...
- Q DNA Polymerase can distinguish between dNTPs and rNTPs becauseof discriminator amino acids in the enzyme's nucleotide-bindingpocket. These amino acids occupy the space where the 2'OH group ofan incoming rNTP would...
- Q 4. You are studying a new bacterial infection. You have evidencethat people are infected by a bacterium; however, you cannot detectany antibodies in the infected individuals to the bacterium. Whatcould...
- Q in 2 paragraphs, please explain how do forensicpathologists and / or anthropologists use skeletal remains?
- Q which two historical figures practiced the use of naturalexperiments
- Q This question is in my plantphysiology homework and the assignment is on the electron transportchain.How is the H+ gradient(potential energy) used? What are the productsthat the proton gradient made? Where...
- Q Respond to the following:An acquired immune response necessitates exposure to an antigen.This initial exposure does not always elicit a leukocyte attack butdoes program central memory and effector memory T-cell. The...
- Q EXPERIMENTAL PROTOCOL:This exercise will engage students in examining uptake of greenfluorescent-tagged bacteria by macrophage cells and unveil theendocytic mechanism used by them. Half of the class will assessbacterial endocytosis by...
- Q Briefly describe the cytoskeletal structure and biologicalfunction of motile cilia why do we need to study the bendingproperties of single cilia?
- Q Respond to the following:Acquired immune responses are capable of controlling aninfection, however, the acquired immune response is controlleditself through different mechanisms. It is primarily activated by athreshold level of antigen...
- Q Describe how animals produce energy in aerobic and anaerobicconditions.
- Q Should researchers or the family “play God†and try to correctthe neuronal cells that are affected in Spinal Muscular Atrophy?Discuss your views on this potential stem cell therapy and discussthe...
- Q What is the Hardy-Weinberg principle for a gene with two allelesin a tetraploid?
- Q Assume you are studying some species of flower that comes inthree different colors: red, pink, and white. You know that coloris determined by a single locus with two alleles with...
- Q Did lead poisoning bring down ancient Rome?Some researchers have questioned whether lead poisoningcontributed to the downfall of the Roman Empire. There are severalpublished papers explaining the potential evidence and theirimportance.You...
- Q Suppose the following genotypes are in a 1:1:1:1 ratio. TTDD,TtDD, ttDD, TdDd If there are a total of 160 individuals, how manyof them have the genotype TdDD?
- Q There are often several receptor subtypes for oneneurotransmitter, like acetylcholine, which are distributed indifferent parts of the nervous system. Why might it be useful tohave different receptor subtypes in specific...
- Q Has anyone ever watched this video and can critique it?Protein synthesis: an epic on the cellular levelhttps://www.youtube.com/watch?v=u9dhO0iCLww
- Q Is acid rain a problem for plant species and crops today? Howare plants impacted by acid rain? Do a web-search and include thename of at least one specific crop in...
- Q 1. In a nutshell, what are the major steps performed during nextgeneration sequencing of DNA? How do these steps differ in theIllumina platform as compared to the Roche 454 platform?2....
- Q c) What would you expect your urinalysis to be like afterstrenuous exercise (e.g, you just completed a 10-mile run)? Specifywhat values you expect to have changed and why?
- Q You counted 620 colonies on a plate with adilution of 10-2. How manycells/ml were in the original sample?
- Q Which of the amino acids neurotransmitters would be responsiblefor producing an action potential and which would most likely bereleased to prevent an action potential from occurring? Can youthink of a...
- Q 2) Proteins imported to which of the following organelles do NOThave their signal sequence cleaved?A. PeroxisomesB. MitochondriaC. Endoplasmic reticulumD. Proteins targeted to all of these organelles have theirsignal sequences cleaved
- Q Match the term in column A with best definition in column BColumn A Column BGlucose AutotrophsCarbondioxide HeterotrophsLight PhototrophsDenitrification OxygenAerobic NitrateAnaerobic sulphateType 1 settling blanket settlingType 111 settling discrete settlingType 11...
- Q A short answer question will require oneparagraph or more to answerWhat are the four emergent properties of water that playan important role in the lives of living organisms?
- Q # Energy source(chemical/light) Electron acceptorphotrophsheterotrophsanoxic denitrifiersaerobesobligate aerobesobligate anaerobesfacultattive aerobesfacultative anaerobes
- Q A tumor grows from what?What is a malignant tumor?What is a benign tumor?Cancer cells divide very ____ because they ____What type of tumors will invade healthy tissue?What is metastasis?What is...
- Q What does cell theory say?What are the four functions of cellular reproduction?T/F Sexual reproduction requires 2 parentsHow many chromosomes does a gamete have?How many parents in Asexual reproduction?Do the offspring...
- Q Carolyn, a 58-year-old female, came into your clinic with achief complaint of acute abdominal pain in the upper rightquadrant. Murphy’s sign was positive, marked jaundice was observed,and history revealed recent...
- Q Guinea worm is one of the human diseases that is on the verge oferadication. There is no preventive vaccine or treatment availablefor the disease. Discuss the public health prevention and...
- Q answer the following statementsa-What is the difference between a shoot and a stem and name theparts each consists ofb-Mention the two types of stems and one difference thatdistinguish them
- Q Water is a highly essential nutrient; Proper hydration and waterbalance are critical for health. Many athletes consume sportsdrinks when working out and exercising. Take a look at thenutrition label on...
- Q Provide evidence to substantiate the hypothesis that eukaryoticcells evolved from prokaryotic cells in three sentences or less
- Q Which of the following describes a difference between cnidariansand ctenophores?a. Cnidarians have choanocytes, whereas ctenophores havecnidocytesb.Ctenophores swim through the water mouth-first, whereascnidarians medusae's power stroke propels them aboral-sidefirstc. Ctenophores have...
- Q Explain the Endosymbiont Theory
- Q Match the source of energy needed for unidirectional proteintranslocation across the membrane.    -Co-translational translocation into the endoplasmic reticulum(ER)    -Post-translational translocation into the ER    -Translocation into the mitochondrial...
- Q Which of the following is not an important ER-resident enzymethat modifies proteins in the secretory pathway?A. BiPB. Oligosaccharyl transferaseC. Sec61D. Protein disulfide isomerase
- Q Explain in detail and with drawings, the actual mechanism of ATPsynthase (the protein responsible for making ATP) and the use ofproton pumps during oxidative phosphorylation and how that leads tothe...
- Q sickle-cell. What percent of offspring should have anysickle-cells? Enter only a whole number.
- Q Would high exposures to ionizing radiation (such as x-rays) beeffective in making milk safe?
- Q What does cell theory say?What are the four functions of cellular reproduction?T/F Sexual reproduction requires 2 parentsHow many chromosomes does a gamete have?How many parents in Asexual reproduction?Do the offspring...
- Q Which of the following is not part of, or generally found in,an ovarian follicle?Select one:a. cumulus oophorus cellsb. An ovumc. An antrumd. Leydig cellse. Thecal cellsWhat effect does estradiol have...
- Q the paper \"Unlikely Allies\" by Amanda Keener. It was publishedin The Scientist, November 2016, page 32. The Scientist is afree-access publication which can be found atwww.the-scientist.com.a) Is the immune system...
- Q Previous research shows that, in humans, the pelvic opening tendsto be wider in females than males1. Generate a hypothesis about what cause this pattern (pelviswider in females than in males).2....
- Q Briefly explain how the lagging strand is replicated. Includehow the replication starts, the enzymes involved and the completionof the lagging strand replication
- Q 1. An isolated population of chimpanzees was discovered on anisland. Biochemical studies show that 1 out of 9 chimpanzees inthis population are homozygous for a mutation in the gene encodingthe...
- Q predict the impact of small population size upon populationgenetics. also, explain the advantages of using largepopulation
- Q If the oxidation of glucose can produce flames, as seen whenroasting a marshmallow over a campfire, why don’t we risk internalburns when we swallow a marshmallow and oxidize its glucose...
- Q 3. Name the three vessels that arise from the aortic arch.Describe the routes of arterial blood supply from these vessels tothe head and neck, the brain, the thorax, and the...
- Q Draw and/or describe the process of phototransduction from themolecular change in retinal to the change in ion flow throughcGMP-gated ion channels. What would happen if a photoreceptor had amutation that...
- Q Draw and/or describe how the edges of objects are encoded in theprimary visual cortex.
- Q Explain why it is difficult to see dimly-lit objects when youlook directly at them. How could this information be used toimprove our vision at night?
- Q How are developmental homeotic genes important to the process ofevolution?
- Q 1.Even when the activation energy is lowered, endergonicreactions are not spontaneous. What else can enzymes do that causesendergonic reactions to go forward?2.It is usually very important for eukaryotic cells to...
- Q Why is it argued that biological races do not exist and thatrace is, instead, a social construct? Â
- Q Given the expression profile of CFTR (tissues in which it isnormally expressed) in non-affected individuals and what you knowabout CFTR function and membrane transport, how would dysfunctionalCFTR lead to each...
- Q The authors identify a number of IFNg-stimulated genes in theirstudy. They identify 3 genes they suggest are novel because no onehas previously shown that these genes have a role in...
- Q a) Pick a type of Analytic study and explain it (what is it, howdo you set it up, what are you looking for, how is it run), andplease give an...
- Q Tetrodotoxin and lidocaine are both drugs that cause localanalgesia or numbness where applied to the skin.  Explainthis outcome, with reference to the effects on membrane potentials,ion flux and overall neuronal activity....
- Q In the human heart, how and why the diastole of 4 chambersoccur? *Elaborate diastole of heart*Could you explain in details cardiac cycle and specifically inthe pressure difference between chambers?
- Q You are on a jury in which a potential murderer wasidentified by a fingerprint, how would you feel about thisidentification compared to an identification made through DNA? Whatare the similarities...
- Q A student is a lab isolated DNA from a transgenicmouse, a model used to study heart failure and wanted to performthe following:1- Amplify DNA2- Clone the gene of interest3- Sequence...
- Q ) GWAS have shown that:a) common SNPs usually have a small effect on common, complexdisease riskb) rare SNPs can have a big effect on common, complex diseaseriskc) risk of common,...
- Q In the Lesser Pahoa Kipuka Chicken population, the frequency ofindividuals born without bones is 1/2500 individuals. Assuming thatonly half of the individuals homozygous recessivefor the \"boneless\" allele survive to reproductive...
- Q ​Is the replication strategy of Sindbis virussimilar/different from poliovirus? Explain thoroughly!
- Q 1. \"The Black Death serves as a major turning point in thehistory of European civilization.\" Discuss this statement in thecontext of late-medieval economics, social relations, popularreligion, and art. (in own...
- Q ​Why is the RNA genome of poliovirus by itself\"infectious\" when transfected into a host cell? EXPLAINthoroughly!
- Q 8. Drug molecules moving between “compartments†move atdifferent equilibrium constants. There are many factors that affectthe rate at which drug molecules move: name three of these factors& explain in 1...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!