Biology question and answers for August 26, 2023
- Q 1.Prontosil showed anti-bacterial activity in patients in vivobut not in vitro. What is the reason for this?2.List two possible ways by which prontosil/sulfanilamide actsas a reversible competitive inhibitor of folic...
- Q Include all the information below about comparison between Hairtextures (Afro-texture vs. East Asian): ?What is the trait called colloquially and scientifically?What are the hallmarks or characteristics? ?What mutation(s) causes the...
- Q With regards to human cheek cells, how many copies ofD1S80 do you theoretically add to a PCR tube and what precautionscould be made to ensure only your own DNA was...
- Q which of the following is not related to genetic drift?neutral variationsexual selectionnon darwinian evolutionbottleneck effectfounder effect
- Q Provide a brief description/explanation about the following:A) The cortical reaction up to blastulationB) Direct exchange with the environment vs indirect (systemic)changeC) Communication of neurons with other cells
- Q 1. In terms of codon recognition, how is terminationfundamentally different than elongation in protein synthesis?2. How might splicing increase the versatility of eukaryoticgenes? Provide an example of a gene that...
- Q Include all theinformation below about Skin color and sun exposure : ( its geneticmutation(s), and the evolutionary mechanisms via which your traitcame to differ between populations)What is the traitcalled colloquially...
- Q Include all theinformation below about Blonde hair (Melanesia vs. Europe) : ( itsgenetic mutation(s), and the evolutionary mechanisms via which yourtrait came to differ between populations)What is the traitcalled colloquially...
- Q What are the different ways that food crops aregenetically engineered? What traits get transferred?What are some of the potential problems of using GMOs inthe food supply?What are some scare tactics...
- Q During the elongation phase of protein synthesis, two tRNAbinding sites (A and P) orchestrate the elongation of a protein.Describe the recognition of the codon and formation of the peptidebond.
- Q Explain the biochemical steps of what happens whensomeone falls into a swimming pool and is submerged for a period of2 minutes.Why do we sometimes administer Sodium Bicarbonate topatients during the...
- Q 1.describe southern and northern hybridization and the factors thatinfluence it? 2.describe the clinical manifestations andpathogenesis of Staphylococcu aureus infections. How are theytreated? 3.what is antiserum therapy, when is it used...
- Q Based on the research question, write an ecologicalhypothesis: Does habitat restoration affect the populationstability of Fender’s blue butterflies?
- Q A 23-year-old woman presents to the OB-GYN office you work at.She was recently surprised to learn that she is pregnant. Sheestimates that she is about 8 weeks along. She tells...
- Q Please correct my grammar's mistakes :)Please correct my grammar's mistakes, thanks!I chose to interview Dinh, who is an active, assertive personand a business major at ACC. Although he is not...
- Q 1. Which of the following refers to a cellulararrangement of bacterial cells?a. rodsb. coccusc. palisadesd. morphology2. A coccus that divides along two planes of symmetry wouldproduce which arrangement?a. diplococcusb. tetradc....
- Q 1.what are the morphologies, physiology, virulence factors anddiseases caused by Group A Streptococci, and What are they cause byStreptococcus pneumoniae? 2. Describe in detail both direct andindirect ELISA immunoassays?
- Q 19) Core Concept: Information Flow-Explain how information from DNA results in thesynthesis of a protein. Explain how information in the environmentultimately results in changes to gene expression.20) Explain the steps...
- Q Howdo the epithelia between the esophagus and small intestinediffer?
- Q Compare and contrast feautures acrossphylum:Porifera, Cnidaria, Ctenophora, Platyhelminthes,Nemertea, Mollusca, Annelida, Blastocoelomates (Phylums Rotifera,Nematode, Entoprocta), Arthropoda (Phylums Tardigrade, Onycophora),Echinoderms, Locophore (Phylums Phoronida, Ectoprocta,Branchiopoda), Protochordates (Phylums Hemichordate,Chordata)What are the big issues related...
- Q In the guide RNA, is there greater stringency for homology atthe 5’ or 3’ end of the RNA?Where, precisely, does the CRISPR/Cas9 system digest the targetDNA?What class of enzyme is...
- Q Do carbohydrates cross easily a phospholipid membrane?What type of chemical bond maintains the carbon tail of lipidstogether?A biotechnology company asks you to attach a monosaccharide to alipid. Which is the...
- Q For each of the following statements, indicate whether it istrue of all, some, or none of the various kinds of peroxisomes.Please first answer the question, then provide an explanation. Iwould...
- Q Describe two modern technological advances in genomicsresearch and give an example of how they could beused in research to solve a problem
- Q DNA mutations can occur in a variety of ways. Choose one of theways that DNA mutations can occur that you are learning about thisweek, identify and briefly describe it.Then, choose...
- Q What can cause a phenol red indicator of carbohydratefermentation to give a false positive with gas?I heavily incubated my organism in the test tube and it isproducing a huge gas...
- Q Determine the number of net ATPs produced in the followingsituations. Assume that each NADH and FADH2 enter the STE. Becareful, sometimes notis ATP what you want to determineShow your calculations...
- Q On page 2 of the textbook, a list of characteristics somethingmust have in order to be considered \"living\" is provided. Which ofthese characteristics do viruses lack? Explain your answer.
- Q Give an example of a molecular diagnostic test used todetermine.Your answer will include the disease, the gene assessed, thechange being detected and how treatment or choice of furthertesting may be...
- Q 4) Diploblast marine animals with radial symmetry, mouthsurrounded by tentacles covered with stinging cells (cnidocytes)with microscopic harpoons that paralyze prey belong to the phylum____________5) This very old animal phylum groups...
- Q how a person's life can changed after they arediagnosed with HIV?how to prevent this disease?are they enough medicines avaiable in USA to help people withAIDS?
- Q Did water move into the cell or out of the cell while it wassurrounded by hypotonic solution?In which direction did the water move through the cell membranewhen the cell was...
- Q 17) Provide at least three ways theCentral Dogma (aka “gene expressionâ€) is different in eukaryotesversus prokaryotes and items that are conserved in both eukaryotesand prokaryotes.18) Describe, in detail, the two...
- Q Question 10 (5 pts.):​ Why do you think cholera would choose tocolonize the intestines of its host, as opposed to other parts ofthe body? (Try to think about what the...
- Q Select a contrast mode in microscopy. In the space below,describe and it in detail (hint: phase, dark-field, bright-field) (1 page limit)
- Q You are planning to do some experiments to demonstrate thedynamic nature of microtubules. How you would fluorescently labelmicrotubules in order to use for FRAP experiments inside acell?Once you have labeled...
- Q Please be detailed. Discuss the concept of the universality ofthe genetic code. Mention the exceptions to this universality. Whatare your thoughts on how the universality of the genetic code makesrecombinant...
- Q In familial retinoblastoma, are mutations in thenormal RB1 gene always responsible forthe loss of heterozygosity?In a family with retinoblastoma, would the mechanism ofloss of heterozygosity in tumors in different members...
- Q Mention Three methods used to promote themicrobiological quality of water and how they affectmicroorganisms.
- Q Write the definitions of the following terms. Give examples ofanimals to which these terms apply.AntennaeAppendageJointed appendageArmAsymmetricalBilateral symmetryRadial symmetryEndoskeletonExoskeletonBoneChitinLegPentamerousSegmented bodyTentacle
- Q Suppose that gene therapy could be used to lower levels ofcholesterol and saturated fat in the blood, thus allowing people toconsume fat-rich fried foods with little risk of heart disease.However,...
- Q Your neurobiology lab primarily studies gene expression ofdistinct brain regions to better understand mechanisms behindmemory loss. Your task as a new graduate student is to createlibraries of Olfactory Bulb and...
- Q 1. In E. coli cell is grown in the presence ofhigh amounts of glucose. Which of the following istrue?a. The cell will use lactose as a carbon source.b. The level...
- Q DNA replication is known to follow which of the followingpatternsSelect one:a. Conservative mechanismb. Dispersive mechanismc. Untraditional mechanismd. Semi-conservative mechanism--In the absence of DNA polymerase 1, a cell would be unabletoSelect...
- Q ChapterQuestions1.    Explain whygood research habits are important and how they relate to personalintegrity and ethics. (Obj. 4)2.    Howard Schultz,Starbucks president and CEO, has been described as a “classicentrepreneur: optimistic, relentless,...
- Q What can occur in both prokaryotic and eukaryotic cells?a. Glycolysisb. citric Acid Cyclec.oxidative phosphoryation and ETCd. A,B,C & Ee. B & C
- Q the main electron donor(s) to the electron transport chain ofmitochondria is/areSelect one:a. Oxygenb. NADHc. Waterd. FADH2e. Both b and d are correct--The main electron donor(s) to the electron transport chain...
- Q Which of the following statements is INCORRECTregarding life history traits?A.Variations in life history traits can result in different adultmorphologiesB.An organism's life history refers to how it is allocating itsenergy and...
- Q A species of grasshopper lives for only one year, but reproducesmultiple times in its breeding season. It is a small, short-livedspecies that grows quickly and reaches sexual maturity early, andproduces...
- Q Describe a viral infection (cite your sources).
- Q Considering the two types of nucleic acids, how does RNA differfrom DNA?a) RNA is double-stranded; DNA is single-stranded.  b) RNA is a polymer of amino acids; DNA is a polymer ofnucleotides.  c)...
- Q 1. How does HIV infection affect the body?2. How is HIV transmitted, diagnosed and treated.3. What are the symptoms, risk factors, and treatment for theother major Sexually Transmitted Infections (STIs)/SexuallyTransmitted...
- Q Explain how resource partitioning may lead tothe following two processes :modification of a population's realized nichespeciation.
- Q Explain what is meant by a polymorphic DNA locus.basic biotechnology
- Q The Golgi apparatus is primarily involved inSelect one:a. Protein sorting/routingb. Lysosome reabsorptionc. Protein catabolismd. Protein synthesise. mRNA processing--Which of the following would make a plasma membrane more fluidat room temperature?Select...
- Q 1. How might a skew in the age distribution of onespecies impact a whole community?2. What are some benefits and drawbacks of generationaloverlap within species?
- Q next to each statement it is true or falseThe 1.-An enzyme can only function once, because it is changedby the chemical reaction. [ Select ]2.- An enzyme's function depends on...
- Q During which phase of growth would a primary metabolite beproduced?lag phaseexponential phasestationary phasedeath phaseall are correct
- Q Identify three environmentalproblems-issues in California and provide the framework that youwould use to resolve the three environmental problems-issues.
- Q Assignment #10 Chapters 11 & 121. The mother of a child who was just diagnosed with type 1diabetes turns to the child’s father and says, “This is all yourfault. Your...
- Q The greenhouse effect causes an increase in global temperatures,which has contributed to global climate change. This temperatureincrease is due primarily to:a) CO2​ and other greenhouse gases allowing moresolar radiation to...
- Q There have been close to 50 different types of bias identifiedin epidemiological practice and research, but nearly all can bebroken down into two major bias categories: Information bias andselection bias....
- Q If you were going to present the problems of environmentalpolicy making and enforcement to others, what framework would youuse?
- Q 1) Give two mechanisms by which new genes are introduced into agenome2) in 20 words or less describe a \"dominant-negative\"mutation3) explain the differences between an activator and inducer
- Q 1. A.  True/False :  If I have a largenumber of Type I muscle fibers, I should excel in explosive eventssuch as sprinting and high jumping.B. True/False : During a muscle contraction, the...
- Q Mycorrhizae are the mutualistic partnership between fungi andthe roots of certain plants. TRUE OR FALSEWhich of the following is not a greenhouse gas?carbon dioxide (CO2)sulfur dioxide (SO2)methane (CH4)ammonia (NH4+)All of...
- Q Construct a visual aid that integrates the concepts covered inour discussions on Nutrient Assimilation in animals (digestion andabsorption of all three macromolecules)Summaries should include at a minimum (but are not...
- Q Genome sequences are useful to search DNA databases. Proteomicson the other hand is searchable protein sequence data that allowsfor comparison within and between species. However, proteinexpression by an organism changes...
- Q Which of the following will increase renal filtration i.)decreasing the radius of the afferent arteriole ii.) increasing theradius of the afferent arteriole iii.) decreasing the radius of theefferent arteriole iv.)...
- Q Provide a visual diagram/drawing (with arrows & briefdescriptions) of what happens if toxic waste (solid and liquid) isaccidentally dumped and leached into the Zanker Recycling Facilityin Alviso, CA (10 points)?...
- Q For questions 2 – 5, identify which of the three instruments (50mL beaker, 10 mL graduated cylinder, or 100 mL graduated cylinder)you would use to measure the indicated quantities:2. 95...
- Q PLEASE BE AS DETAILED AS POSSIBLE. THE PRECISE DETAILS AREREALLY IMPORTANT IN THIS QUESTION. IT IS A 10 POINT QUESTION THAT IAM REALLY STUCK ON.PLEASE PROVIDE EXAMPLESDescribe and explain (think...
- Q Amphibians were the first tetrapods, list all of theevolutionary milestones that first appear in amphibians. Describein depth ways amphibians are similar to boney fish.
- Q PLEASE BE AS DETAILED AS POSSIBLE. THE PRECISE DETAILS AREREALLY IMPORTANT IN THIS QUESTION. IT IS A 10 POINT QUESTION THAT IAM REALLY STUCK ON.PLEASE PROVIDE EXAMPLESModern ecology was born...
- Q What is TRUE about the invasion and metastasis of cancercells?Does not require modification of junction complexes betweencellsIs a characteristic of benign tumorsOccurs at an early stage of carcinogenesisRequires that cells...
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