Biology question and answers for September 04, 2023
- Q Why do B-catenin levels stay about the same instead of anincrease in an EMT (Epithelial to Mesenchymal Transition). What isyour explanation and what simple experiment can you suggest thatwould demonstrate...
- Q Hydrogen bonds can form with bases on the opposite DNAstrands in the double helix, or between the bases and H2O in thesingle stranded conformation. Considering that the double helix isthe...
- Q How does size affect the rate of diffusion?Size doesn't matter.Large molecules diffuse faster.Small molecules diffuse faster.The first step taken when looking through the oculars of amicroscope is to adjust the...
- Q What does it mean to have a 2 or 3 year growing season cycle inplants ? What are consequences and examples if there occur anysyndrome because of having 2 or...
- Q Why would overexpression of RTK (Receptor Tyrosine Kinase) leadto an oncogenic phenotype (describe the mechanism)?
- Q Describe the role of the troponin-tropomyosin complex and therole of calcium ions in skeletal and cardiac musclecontraction.
- Q Your Smith textbook lists several methods of removing lesions.Select one method of removal and locate a more specific descriptionof that type of removal. (For example, Removal of skin tags. Skintags...
- Q Give one example of how you would assay for overexpression ofRTK (Receptor Tyrosine Kinase). Would it be an immune complexkinase assay then determine if it's a tyrosine kinase? I'm notsure.
- Q Recall that the Hoopoe birds are getting cancer because of theHCP retrovirus – take a look at the viral transforming gene, v-hcpcompared to the c-hcp/mtk gene (above). (v-hcp lacks a...
- Q Compare and contrast web builders and lie-n-wait spiders withrespect to costs and benefits of their mode of prey capture.please answer the question completely, but in easily in a simpleway. Thank...
- Q how to form a hypothesis with these the Arf-GAP with Rho-GAPdomain, ANK repeat, and PH domain-containing protein ( ARAP) familyof proteins.
- Q How to connect lung cancer with the following:C1. analyse the economic and environmental advantages anddisadvantages of an artificial selectiontechnology, and evaluate the impact of environmental changes onnatural selection and endangered...
- Q WHAT DO YOU THINK ABOUT THE DIVERSITY IN TODAY'S MULTIRACIALOFFSPRING?
- Q 10. A large territory of the primary somatosensory cortex (S1)in rodents is responsive to vibrissa (whisker) deflection. WithinS1, inputs from each vibrissa are organized into anatomicallydistinguishable clusters of neurons called...
- Q Describe two methods of studying the evolution of silkproduction and use in spiders. In other words, how could you gaininsight into how this complex morphological and behavioral suite ofcharacters evolved?Please...
- Q Cytosolic pyruvate isthe end product of glycolysis. Its fate depends on the metabolicstatus of the cell. If there is plenty of oxygen, the aerobicpathway dominates. If oxygen is insufficient, the...
- Q 1.how many copies of each gene does a human cell have at the end ofG1 of the cell cycle?2. how many copies of each gene does a human cell have...
- Q Glycolysis requires four different phosphotransferase reactions.Identify the phosphoryl donor, acceptor, and nucleotide end-productfor each. The choices for each box are the same and they are1,3-Bisphosphoglycerate, ADP, ATP, Fructose-6-phosphate, Glucose,Phosphoenolpyruvate.enzymephosphoryl donorphosphoryl...
- Q 1. Describe the stages of C. elegans development, and indicatehow you would differentiate between these stages?
- Q You mate a male from a true-breeding strain of dwarf mice to afemale from a true-breeding normal-sized strain. The F1 mice areall normal in size. What would the phenotypes of...
- Q 2. SELECT AN INFECTIOUS AGENT AND CREATE THE CHAIN OF INFECTIONAS PER THE MODEL. IDENTIFY WHAT STEPS CAN BE TAKEN TO BREAK THATCHAIN. (note – you cannot select E. Coli...
- Q How did the forebrain, midbrain, and hindbrain change over thecourse of evolution? Be specific. You must tell me how thethree-part brain evolved into a 5-part brain (which is a hint...
- Q In Drosophila, the X-linked recessive mutation vermillion (v)causes bright red eyes, in contrast to the brick-red eyes caused bythe wild-type allele. A separate autosomal recessive mutation,brown (bw), causes flies to...
- Q Similarities and differences between the domains providecontradictory information about theirpotential origins. How do lipid structures contribute to thiscontroversy
- Q FOR THIS ESSAY IT IS ABOUT 1,200 WORDS.DARWIN WAS NOT THE FIRST TO CONSIDER EVOLUTION AS A PROCESS BUTHE DID COME UP WITH THE FIRST EFFECTIVE EXPLANATION FOR HOW ITHAPPENS....
- Q 16. A human nephronA. is one of the two kidneysB. is the functional excretory unitC. is about the size of your fistD. all of the above17. The proximal convoluted tubuleA....
- Q An energy pyramid illustrates a great loss of energy at eachlevel of a food web. Each level of the pyramid has only 10% of theenergy at the level below it....
- Q What is the importance of relay signaling indevelopment?
- Q Describe the changes in brain function that accompany changesin brain complexity that occurred with evolution.
- Q A.)There are four important steps in a Gram stain. List thespecific stains/chemicals used in each step, and the color of bothGram positive and Gram negative bacteria after each step.B.)Describe 2...
- Q Describe the pathway that transmits pain stimuli to the brainand the analgesic pathway that will lessen pain sensitivity.
- Q Question from Informatic pathology subject in bioinformatics,need answers in essay form for 25 marksA 60-year-old man, presented with complaints of cough andexpectoration for the past 7–8 months. The expectoration was...
- Q Question from Informatic pathology subject in bioinformatics,need answers in essay form for 25 marksA 42-year-old man was admitted to hospital regarding epigastricburning or aching pain, nausea, vomiting, bloating, belching andweight...
- Q Ineed finding any interesting information about Mold which is typeof fungus that’s related to food. Make sure to include referencesplease.
- Q A strain of E. coli carries a mutation thatcompletely inactivates the enzyme encoded in the gene. Severalrevertants, mutants of the mutant with partly or fully restoredactivity, were selected, and the...
- Q Question 2Enzymes basically work by...A.Directly providing ATP for muscle contractionB.Lowering the activation energy required to drive thereactionC.Combining with NAD+ to provide energyD.Helping oxygen attach to substrate during metabolismE.Both A and...
- Q The Fragile-X syndrome is the most common inherited form ofmental retardation in humans. The gene causing the disease has beencloned and shown to encode an RNA-binding protein that binds to...
- Q RNA may fold back onto itself to form regions of double-strandedRNA. (a) Describe at least two structures found in double-strandedregions of RNA. (b) What features of RNA contribute to thestability...
- Q Read the paper below and answer the accompanying questions.‘Whole-genome sequencing expands diagnostic utility and improvesclinical management in paediatric medicine’ Stavropoulos et al.npj Genomic Medicine 1, Article number:15012 (2016) doi:10.1038/npjgenmed.2015.12How successful...
- Q In chickens, the presence of feathers on the legs is due to adominant allele (F), and the absence of leg feathers isdue to a recessive allele (f). The comb on...
- Q How can you tell when you have adequately species diversity?Explain your answer.
- Q Reverse Transcriptase (RTase) is an enzyme found in HIV. What isthe function of this enzyme in HIV’s life-cycle? What are some usesof RTase for human applications?
- Q Describe the relationship of yeast and humans?
- Q what is the best the best kind of media (agar or broth medium)to use for identification of the following bacteria:Staphylococcus aureusEscherichia coliStreptococcus pneumoniaeExamples of possible media choices may include: TSA,...
- Q Question is: A man produces his alleged girlfriend’s medicaldocuments which include a diagnosis of “vulvovaginitis†with thesaline wet mount lab results showing flagellated protozoa. What isthe likely diagnosis of the...
- Q According to their calculation of theta, the long term mtDNA Ne=5000. Now assume that a single African mtDNA lineage migrates fromAfrica to European Neanderthals. How many years will it take...
- Q Please answer the following question in your ownwords.1. The following relates to Natural Selection and the theory ofevolution:A. How is natural selection related to gene flow, how is itrelated to...
- Q You decide to do to determine the effect of used cigarette buttson water from Morses Creek, NJ and how it affects the water qualityindex. In the lab, you set up...
- Q Water is both a powerful force and critical to an organism’ssurvival. Explain how this can be true of water,by providing a detailed example of each situation(including the chemistry aspect as...
- Q 1-What is true of people with O blood type?A)They possess an enzyme the adds a phospholipid to the surface ofred blood cellsB)They possess an enzyme that adds galactose to glycolipids...
- Q 1) List 5 adaptations that allow plants to live in relativelydry conditions. What is the order in which these evolved?2) List two of the earliest adaptations plants developed to liveon...
- Q 1. As a molecular biologist, you have been asked to design aliposome (artificial cell). The purpose of the liposome is to carrydrug to the inner linings of the stomach cells,...
- Q Explain five pieces of evidence that supports the punctuationalmode of an evolutionary trend?
- Q Explain five pieces of evidence that supports the gradualisticmode of an evulotionary trend?
- Q What is the unusual about fungal mating strategies -- whatunique type of ploidy do they have?
- Q 48. Provide evidence that amphibians are both terrestrial andaquatic animals. (4)49. Which structure was most important inallowing reptiles to break completely free of water in comparisonto amphibians?a. better adapted eyesb....
- Q Section 28:3What are the four major classes of flatworms? How do theydiffer in terms of their lifestyle? Give an example of each.Describe the life cycle of a tapeworm. (Also see...
- Q How would do the following question given the intracellular andextracellular recordings of voltage? Calculate the length constantfor this axon using the equation for passive electronic decay of asignal: Vx=Vo e^-x/lambda...
- Q What is the event that marks the transition from haploid to thediploid stage of the life cycle and what event marks the transitionback to the haploid stage again. Describe the...
- Q What if the gene encoding DNA polymerase I was mutatedin a way that the enzyme is non-functional?Would it affect the synthesis of the leadingstrand?How about the lagging strand?
- Q Which description of water potential measurements within aplant's tissues lead you to conclude that transpiration is freelyoccuring?No information is given on the guard cells.a)soil water potential= -5.0,root water potential= -7.0,stemwater...
- Q Toexplain the following concerning Cyanobacteria in general.1) general characteristics2) Type of reproduction and how3) Why important evolutionarily, ecologically, andeconomically?
- Q India' s general state of healthcareA. State the purpose of the country profile and explain why youchose to write about this country in particular.B. Identify appropriate details needed for an...
- Q Please Fill in the blank:The mitotic spindle consists of ___________. These arise fromtwo _____________, located at a _______________. The mitoticspindle moves ______________ around the cell by attaching to their________________.
- Q Give an example of each type of tissue in a frogDescribe its general anatomyDescribe its basic function
- Q 3. Diabetes mellitus is characteristic by the hyperglycemia.Type 1 diabetes is also referred to as insulin-dependent diabetes,meaning that the affected person lacks insulin in the blood. Pleaseexplain the biochemical mechanism...
- Q Cell Biology WorksheetPart I: Foundations of Cell BiologyRespond to the prompts in the tables below.Each response should be at least 30 words. Cite any references thatyou use.Foundations of Chemisty in...
- Q Find 5 clinical trial articles on the impact of a particularmedications and how it might change the current practice.The articles should be a primary literature article ( e.g arandomized double...
- Q 6. A bacterium does not want to waste energy synthesizing theamino acid arginine if arginine is present in its diet. Therefore,when arginine is present, it activates a repressor protein toprevent...
- Q In some plants a red pigment is synthesized from a colorlessprecursor by a single enzyme coded for by gene A. The red pigmentcan be changed into a purple pigment by...
- Q Hi. I am studying Human Genetics. The subject is dwarfism.My question is : In relation to dominant gene alleles andrecessive gene alleles determine expression of single-gene traits,such as dwarfism, describe...
- Q Why is the citric acid cycle considered to be a “centralmetabolic hub†of the cell? Provide anexplanation with specific examples, including control andregulatory aspects of the citric acidcycle. What happens...
- Q -Describe the process of gel electrophoresis. How would thedistance that each DNA fragment travelled on your gel change if youwere to make the gel using a higher percentage of agarose...
- Q *Bacterial cell walls are made of peptidoglycan that:a. consist of linear polysaccharides that are cross linked bysimple sugars to form a ‘mesh like’ structure that maintains cellintegrityb. consist of linear...
- Q *Pasteurization requiresa. vaccinating animals to protect them against Mycobacteriumtuberculosisb. the use of heat to kill most of the microorganisms found inliquids such as milk to preserve their tastec. use of...
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