Biology question and answers for July 12, 2023
- Q what are five limiting factors that would control thepopulation density of weeds?
- Q What are two main types of changes that have occurred in theevolution of primate teeth from the primitive mammalianpattern?Explain why teeth are so important in evolutionary andfunctional studieswhat are two...
- Q 44. Which media/tests can be used to exhibit gasproduction?CitratePRGTSIA and BB and C
- Q Cellular Dysfunction1. Decreased pH in cytosol below the normal range2. Decreased pH in mitochondria below the normal range3. Increase in ATP4. Increase in Hydrolysis5. Decreasing levels of Glycogen and Triglycerides6....
- Q 1.  Successful reproduction requires the precisecoordination multiple, diverse processes in time and space. Similarto other species, these diverse processes are often regulated by asingle factor.A. Describe the multiple purposes and processes...
- Q 1. Give five steps to making a dual resistant bacteriacontaining genes for resistance to ampicllin and Kanamycin1.2.3.4.5.2. State three importatn components of avector
- Q How much time should be allowed to elapse once a koshermeat product has been consumed, before the consumption of aKosher-dairy product is to be consumed?Convert the basic ingredients used to...
- Q What roles do hormones epinephrine (adrenaline), insulin, andglucagon have on metabolism of carbohydrates and fatty acids inmuscle or liver cells.Also include the enzymes that have covalent modicationregulated by them.
- Q When the energetic change of a reaction is high or low, what typeof pathway will glucose take and what matabolic needs of a muscleor liver cell.
- Q homozygous recessive is crossed with a heterozygote, whatpercent chance is there of getting a heterozygous genotype inf1?
- Q How are Cdks activated? Be sure to include in your answer theroles of:a) Cyclinb) CAK
- Q briefly describe the events in translation
- Q What is the processing leaf litter (steps) in first-orderstreams?
- Q A nonscientist friend of yours asks how findings in a wormorflycan be relevant to human biology. Explain to your friend theimportance of model organisms in molecular biology research.1. Compare and...
- Q what is purpose of bacteria isolation and why is it necessary formedical diagnosis? Describe two different plates (How do they workand what information do they give you about bacteria)
- Q In Community X (population 20,000), an epidemiologist conducteda prevalence survey in January of 2012 and reported an HIVprevalence of 2.2%. Over the next 12 months, the department ofhealth reported an...
- Q I recently obtained faecal samples from a patient with unusualsymptoms. The patient had recently travelled to an island wherethere was no access to fresh water.  From these samples Iisolated what I...
- Q How might the information gained from this lab pertaining tomitosis and meiosis be useful to you as a healthcare professional?(20 points)
- Q Oxidative phosphorylation is dependent on all of the followingEXCEPT:a. an intact mitochondrial membraneb. the activity of ATP-ADP translocasec. the reduction-oxidation state of irond. the reduction of oxygene. there are no...
- Q Disruption or elimination of normal microbiota may lead todisease. Explain with examples.Thank you for your help!
- Q Compare and contrast (that means tell me how they are similarAND how they aredifferent) gene regulation mechanisms in prokaryotes andeukaryotes. explain whyregulation is more complex in multicellular eukaryoticorganisms as compared...
- Q Explain the difference between nonspecific binding andspecific binding using an indirect ELISA as an example. For thisassay, assume that you are determining the titer of antibodyagainst BSA.You bind BSA to...
- Q Is the cytosol and intermembrane space of the nuclear envelopetopologically equivalent?
- Q Antibody titer is a measure of activity, not actualconcentration. Explain why titer is a measure of activity, not aconcentration. Please use the following example: You haveanti-sheep red blood cells from...
- Q Kainic acid was one of the first compounds used to model TLE inrodents. What is(are) its molecular target(s) and how would thiscompound lead to seizures?
- Q what type of anti-viral vaccine would be most suitable againstCOVID-19, and why? What is the role of the tuberculosis BCG vaccinein the protection against viral infections including COVID-19?
- Q describe the stages of meiosis, good explanation that is easy tounderstand please
- Q Discuss fire as a mechanism of secondary succession and how anatural fire can enhance species diversity of a forest. Use theIntermediate Disturbance Hypothesis.
- Q According to A Short History of Humans and Germs, most majorhuman diseases developed and spread when humans began living inlarge cities with populations of up to 500,000.T OR F
- Q 1.1 Explain the principles of serological reactions ingels. (for 5 marks)1.2 Discuss the processing and presentation of antigens byphagocytes. (for 10 marks)
- Q Sry guy, can't find a subject for this - so I put underBiologyPls do not handwrite the answer, this is for easy readingQns:What does medicine contribute to technology/sciences? (E.gbiomimicry in...
- Q What the method and results of blood grouping andblood typing experiment.
- Q What are nucleotides? How do nucleotides contribute to genes andchromosomes?Why is the trinucleotide sequence, CAG, important in HuntingtonDisease?
- Q Explain why many extreme halophiles use KCL (instead of NaCl) astheir compatible solute. [SHORT ANSWER]
- Q CF carrier frequency estimations in American Hispanicpopulations • Carrier screening kits for Cystic Fibrosis alleleshave been updated to include more probes (CFTR 60 kit 2) • It isreported to have...
- Q With reference to the structure of hemoglobin and your knowledgeof complexformation reactions, discuss the stability of oxygenated hemoglobinversusdeoxygenated hemoglobin. Be sure to fully outline yourreasoning.
- Q When we study the effects of chronic stress on human health,most of our chronic stress is imaginary, meaning, it's made up byour imagination and conscious thought, created by the Frontal...
- Q You have been cultivating snapdragons in your garden andallowing plants to re-germinate each year from seeds dropped by theprevious year’s annual plants. You know that white flowers arerecessive and count...
- Q Write down the equation for the production of NADPH andRibose-5-P in the Pentose Phosphate Pathway(PPP) and the PPP'sbiological significance :)
- Q 1. A vaccine to COVID-19 is perhaps the best way to end thepandemic. Please answer the following questions in a way that youmight explain it to an intelligent patient who...
- Q Review the osteoporosis. Make a personal assessment andformulate 8 or more strategies to improve the future health of yourbone health.
- Q 4. After performing a Gram stain on a Gram negative bacteria,the specimen shows purple bacteria. Which of the following bestexplains why this occurred? A. Crystal violet was not used B.Decolorizer...
- Q Compare the F and Hfr transfer.
- Q Tunicates is non cephalized but has a bilateral body symmetry. Whatfeatures of tunicates life history do you think contributed to itnot sharing the association of cephalization.
- Q If I conditionally knockout FGF8 in the somatic and lateralplate mesoderm of a mouse during the onset of limb bud formationwhat would the resulting phenotype look like? What about if...
- Q whats the role of small G proteins,Ras? what's the role of smallG protein, Rho, Rac and CDC42?
- Q Compare and Contrast infectious diseases, food security andenvironmental issues in terms of mortality in Mexico and the U.S..How and why are these countries so different in terms of thesetopics.Thanks.
- Q Match the vocabulary for Evolution: Species, Populations,Heritable Variation, AdaptationsA) Genetic differences in individuals within a population thatcan be pass onB) Groups of the same species in the same geographic areaC)...
- Q Biotechnology (Online genetic testing services, GMOs infood debate)What are the main arguments for and against using geneticallymodified foods and getting DNA testing online?
- Q In otherwise normal, intact (not leaky), coupled mitochondriasupplied with succinate and ADP, if you add the uncoupler CCCP:a. What happens to electron- transport (works/stops)? Why?b. What happens to oxygen consumption...
- Q The best way to describe genetic diversity in humans is bydescribing it as a geographic component of ancestry. That is, humanpopulations gradually change in their allele frequencies in manycases with...
- Q Cystic fibrosis is caused by a recessive allele. (Use \"N\" tostand for the normal, non-disease allele). If parents that are bothheterozygous for cystic fibrosis have a child, what is the...
- Q What outputs of the light dependant reaction does not go intothe light independant reaction. how are they produced and where dothey go after being produced?
- Q In otherwise normal, intact (not leaky), coupled mitochondriasupplied with succinate and ADP, if you add OLIGOMYCIN:a. What happens to electron- transport (works/stops)? Why?b. What happens to oxygen consumption (works/stops)? Why?c....
- Q 1.) What is the positive control in this experiment? Negativecontrol? Why do you think this?Tube #3 M Na Pyruvate(Activator)0.1 M MgSO4 (activator)0.1 M NaF (inhibitor)5.0% Glucose (Activator)WaterFill WithCo2 Produced after...
- Q Which of the following can contribute to new traits appearing inbacteria?1) sexual reproduction2) all of the other choices are correct3)mistakes while DNA is copied4)conjugation5) two of the other choices are...
- Q how to activate a small G protein? how to inactivate a small Gprotein?
- Q The following is a strand of eukaryotic cDNADNA: 5'- catgtctdacagctggccgcca- 3'a) convert the dna above to its complementary DNA strand (mustlabe the 5' or 3' ends)b) dna is converted to...
- Q Drug use during pregnancy can include alcohol, tobacco, illicit,and over-the-counter medications. List 4 specific risks that canresult from using drugs during pregnancy.a)b)c)d)
- Q You are following 5 recessive traits in an animal: a, b, c, d,and e. Your student gives you a heterozygous animal, and youtestcross this animal. You collect the following 10,000progeny:2000Â Â Â ...
- Q What is the role of decarboxylation in fatty acid synthesis?Name another reaction in a differentmetabolic pathway that employs this mechanistic motif.I know the role is to drive the condensation reaction...
- Q what are mitochondria genetic mark in the family tree origen andhow are they found? please explain in details
- Q What is ligation-mediation PCR? Explain what it isused for and how it works
- Q Causes of Cancer and TreatmentsWhat are some causes of cancer? Think about environmental,lifestyle, viral, and genetic factors. Know what is meant bytargeted therapies for cancer – how are they different...
- Q 19(a).  Angiosperms and gymnosperms producefruit and pollenseeds and fruitseeds and flowersseeds and pollen
- Q Researchers involved in sequencing the human genome anticipatedthat the effort would raise ethical, legal and social concerns.Identify and describe at least one ethical, legal or socialconcern. (100+words)
- Q For each acronym, indicate if it’s either a technique, amolecule or a cellular/molecular eventNote: If a molecule is involved in atechnique, you should still select “moleculeâ€CasHGPNHEJSDMPZIFTTALEICSIZFNPTRIUIIVFPGDARTTLVrtDNACIPAMGOIDSBHDRgRNA
- Q Describe how a poison could affect the electron transport systemin cellular respiration. Explain how it happens, the result, andgive an example. Be specific but can you also dumb it down.
- Q Describe how the mitotic spindle, cohesin, APC, separase andsecurin work together with each other, at the appropriate time inthe mitotic phase of the cell cycle, to align the chromosomes alongthe...
- Q How would you determine whether the morphologicaldiversity of animals has increased, decreased, or stayed the samesince the Cambrian? Explain what kind of data you would collect,how you would analyze it,...
- Q Describe the sequence of steps for an action potentialof one neuronal cell leads to the action potential in apostsynaptic cell.
- Q Homo: The HumansDuring the Pliocene-Pleistocene transition the Homo genusappeared in the fossil record. The Homo genus is a a continuationof the Gracile Australopithecines. Like those that came before,Homo is an...
- Q Describe and ELISA test. How is it like a Western blot? Whatare the advantages over a Western blot? Disadvantages?
- Q In mice the loci for tail length, fur color and whisker shapeare found on the same chromosome. Long tails (T) are dominant toshort tails (t), brown fur (B) is dominant...
- Q If you were the director of the Centers for Disease Control andPrevention (CDC), what measures would you implement to reduce theUS vulnerability to pandemics in the future? Explain your answer;use...
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