Biology question and answers for August 30, 2023
- Q Describe the theory of endosymbiosis
- Q Microbiology1. Which type of phage infection can cause specializedtransduction?2. When protein synthesis initiates, does the first tRNA bind inthe A-site, E-site, or P-site of the ribosome?3. TRUE OR FALSE: A...
- Q what are the causes of acne vulgaris ?
- Q Question 3 [30]Fructose is a naturally occurring carbohydrate. There are threeinborn errors ofmetabolism associated with fructose metabolism.3.1.Discuss the three inborn errors of fructose metabolism indetail, paying attentionto the biochemistry of...
- Q Compare and contrast the three major mechanisms of DNA repair usinga VENN Diagram. Mechanisms: Proofreading by DNA Polymerase IIIduring replication, Mismatch Repair, and Nucleotide ExcisionRepair
- Q Gene therapy consist ofA.replacing the genomes of an individual with a brand new set ofgenomes with the goal of treating a genetic defect.B.replacing a defective gene in an individual with...
- Q What is the purpose of borax in a GMS stain for histoPathology?
- Q A population has the following data:Genotype NumberAA 65Aa 5aa 25A) Calculate the allelic frequency for theA allele.B) Calculate the allelic frequency for thea allele.C) Calculate the expected Hardy-Weinberg genotypicfrequency for...
- Q What is meant by “the importance of place†in early Americanscience?
- Q Regulation of GNG and glycolysisDescribe how high energy charge favors gluconeogenesisover glycolysis based on the ratio of [ATP]/[AMP] of high energycharge and allosteric regulation (McKee page 298).Describe how low energy...
- Q A control group is ____________.A standard against which experimental groups are comparedIdentical to experimental groups except for one variableA standard with several variables against which an experimentalgroup is comparedBoth a...
- Q theory 1The ancestors of giraffes had short necks, and there was greatcompetition for the plant food near the ground. Some of thegiraffes kept trying to stretch their necks to reach...
- Q A) Genes A, B, and C are linked as shown below. A and B are 10m.u. apart, while B and C are 20 m.u. apart. All dominant allelesare on one...
- Q Summarize sensory information is processed in plants...pleaseinclude the followingDescribe the processes by which sensory cells receive andtransduce external signalsDescribe how signals are transmitted within plantsDescribe how cells produce a responseGive...
- Q List the 5 basal ganglia. Indicate which are located in thecerebral hemispheres, which in the diencephalon, and which in themidbrain.
- Q 40. Why have researchers turned to the techniques ofmetagenomics to get a grasp on the abundance and diversity ofmicrobes in the marine environment? (2)41. Prochlorococcus is a marine cyanobacteria. Sincethis...
- Q Each of the four major kinds of plants is associated with fourimportant evolutionary events. What are those events, and whichplant type is associated with each event? (This question is worth20...
- Q In Cats, Short Hair (H) is dominant to , Long hair (h). Tabby(T) is dominant to , Stripless (t). Normal, no colorpoint (N) isdominant to, Colorpoint (n).I. A homozygous short...
- Q 1. Name five differences betweenmitosis and meiosis.2. During meiosis, which two processes occur that canincrease genetic variation in the gametes?A.     independentassortment and crossing overB.   crossing over and cytokinesisC.   separation of the sister...
- Q You are a field researcher for the CDC. You and your labpartner have been sent to an area to quantitatively analyze a setof samples believed to contain pathological bacterialcontaminants.On a...
- Q A person becomes ill after ingesting food containing botulinumtoxin. This is an example of:A. IntoxicationB. ToxemiaC. EndemicD. Infection
- Q The movement of molecular motors depends on the conformationalchanges that the proteins undergo as they proceed through the cycleof nucleotide binding, hydrolysis, and release. If you were to adda nonhydrolyzable...
- Q Compare and contrast the process of viral replication inanimals, plants, and bacteria. Why this variation?
- Q what are mechanism involved in preparing yeast from slant tofermenter? please make the answer as detailed as you can, perhapsyou could add reference so I can study this further
- Q 5sentences minimum1) Describe the effect of calorie restrinction pathologiesincluding the incidence of tumors and immune systems.2) Using the health study of nurses, explain the relationshipbetween body weight and relative risk...
- Q Why aren't all amino acid R groups ionizable?
- Q A tuberculin skin test involves injection of a purified TB(Mycobacterium tuberculosis) antigenic protein under the skin. Apositive skin test is a local swelling and redness at the siteafter 48 to...
- Q 44. Jellyfish are considereda. meroplanktonb. kronoplanktonc. cryoplanktond. holoplankton45. Crab larvae are considereda. meroplanktonb. kronoplanktonc. cryoplanktond. holoplankton46. Organisms that are able to swim against the currenta. phytoplanktonb. zooplanktonc. nektond. infaunae. epifauna47....
- Q 6. Aminoacyl-tRNA synthetases catalyses _____ 1. DNA replication2. transcriptional termination 3. the attachment of amino acids tothe tRNA molecules. 4. the binding of mRNA to the 30S subunit. 5.the removal...
- Q #1: Gene Transcription and TranslationWrite a brief statement hypothesizing as to why mRNA is sounstable in most bacteria (t1/2 of about 1 minute), when the samehalf-life is more like 1...
- Q Compare and contrast the different types of inhibitors,with examples, including: transition state inhibitors, suicideinhibitors, irreversible inhibitors, competitive and noncompetitiveinhibitors
- Q Part 1: Select one of the cell parts from thelist below.1.    Nucleus2.    Centrosome3.    Rough ER4.    Smooth ER5.    Cytoskeleton6.    Peroxisome7.    Golgi apparatus8.    Lysosome9.    Ribosome10. Plasma Membrane11. Glycocalyx12. Vesicles13. Vacuole14. Mitochondria15. Chloroplast1.Without...
- Q in badgers, fur color is inherited through simple autosomalinheritance, and black fur is dominant to white fur. A black badgeris crossed with a white badger. In a cete of four...
- Q Each of the following bacterial lifestyles exposes the bacteriato an environment that requires special evolutionary adaptations tosurvive. In each case, explain what adaptations were required forthe bacteria to live in...
- Q 1) Describe the five basic mechanisms of antibiotic actionagainst bacterial cells. Give examples of drugs that are used ineach category.2) In many instances, resistance builds to antibiotics overtime. Describe at...
- Q Describe the role of specific proteins involved in themuscle contraction process.
- Q Describe the role of specific proteins involved in themuscle contraction process.
- Q Penicillin is an antibiotic that inhibits peptidoglycansynthesis. Based on your results and knowledge of cell envelopedifferences, would penicillin be more effective against S.aureus (purple) or E. coli (red)? Explain yourrationale.
- Q Describe the role of specific proteins involved in themuscle contraction process.
- Q You hypothesize that a group of tolerogenic cells is located inthe fetal pancreas.a. What method would you use to identify their location withinthe tissue?b. What method would you use to...
- Q The glutamate side chain has a pKa of 4.4. Calculate thepercentage of Glu that is unprotonated at a pH of 4.7.
- Q A corn breeder has a plant that is dominant for 4 traits thatare known to assort independently (i.e. it’s phenotype isA_ B_ C_ D_). This plant has desirable properties, so...
- Q Explain how can changing one base in a segment of DNA can make aprotein incapable of carrying out its biological role.
- Q a. You start a culture of stem cells and you use a protocol todifferentiate them into beta cells. To make sure they are trulybeta cells.First you want to check whether...
- Q Protein Code: 1CJY which is HUMAN CYTOSOLICPHOSPHOLIPASE A2.Please go in depth about what the structural features are of theprotein? (primary, secondary, tertiary, quaternary)
- Q Explain the relative roles that Fe2+ and Fe3+ play in the structureand function of hemoglobin
- Q When researches incubate whole red blood cells withlactoperoxidase, hydrogen peroxide and radioactive iodine I 125 andthen separate the proteins in SDS gel, several radioactive linesare obtained cause iodine binds to...
- Q list and discuss the management options that a farmer can use toenable the herd to improve its energy intake?Explain how thecomposition of milk from a human differs to that of...
- Q 1)methotrexate is an inhibitor for the folate cycle which isimportant in both purine and pyrimidine synthesis. Where on eachpathway does folate play a crucial role? How is this medicationused as...
- Q What are the 4 evolutionary processes? Describe them, how doeseach contribute, and which dominate and under whatcircumstances?In essay format please! :)
- Q Before starting a purity plate, you can ensure you have a pureculture if (check all that apply)A)all the colonies are convex but different colorsB) you use cells from only one...
- Q Evolution by natural selection is initially relatively morerapid when against a common recessive allele than against a commondominant or codominant allele.(1 mark): Why?
- Q Explain Operons Detaillya. Describe the purpose of the essential operoncomponents (promoter, operator, genes, regulatory protein). Keepyour answers general for all operons.​​​​b.Contrast repressible and inducible operons. Includedescriptions of differences at the...
- Q How does the voltage sensitivity of K+ conductancecontribute to the action potential?
- Q This week we have been learning about the methods archaeologistsand paleontologists use to reconstruct the past. Now it’s time toget creative and apply this new knowledge to the present day....
- Q A businessman moves from Thailand to pursue a job opportunity inthe US. His diet changes from one high in local raw fruits andvegetables to mainly canned and frozen vegetables. The...
- Q Select all of the statements that are true.1. Membranes can contain lipids, proteins, andcarbohydrates.2. Fatty acids will form a membrane bilayer in an aqueoussolution.3. Membranes are static.4. Membrane composition is...
- Q 1/Which coenzyme is required for aminotransferases?Select one:A. Flavin adenine dinucleotide (FAD)B. Thiamin pyrophosphate (TPP)C. Pyridoxal phosphate (PLP)D. Nicotinamide adenine dinucleotide (NAD+)E. Folate2/Which amino acid needs to be supplemented in the...
- Q You cross the following two individuals:Individual 1: A/a;B/b;C1/C2Individual 2: a/a;B/b;C1/C2 A is fully dominant, B is dominantlethal, whereas C1 and C2 are incompletely dominantThe proportion of offspring that are expected...
- Q Hydrocarbon Lab Post-Question:Two of the compounds in this experiment had similar odors, yettheir molecular structures are very different. Comment on factorsat the molecular level that may be involved in the...
- Q A) Quantitative vs. Qualitative variables – write an example ofeach.B) Discrete or Continuous? – for the quantitative variableexample you noted in part (A) above, is it discrete orcontinuous?C) For each...
- Q Replication is a process that occurs naturally in a cell, wherePCR is done by scientists in a laboratory. Compare replication andPCR by discussing the components and processes that are similar...
- Q Which of the statements describes purines and pyrimidines in DNAmolecules? (Pick more than one)Pyrimidines consist of a one-ring structure.Pyrimidines form hydrogen bonds with purines.Pyrimidines form covalent bonds with purines.Adenine and...
- Q briefly describe characteristics of these representatives thatallow you to dintisguish the diferent orders.CalcareaDemospongiaHexactinellidae
- Q You have cell A and cell B. A changes phenotype after you placeit in an in vitro co culture system with cell B. How do youdetermine is this is the...
- Q Describe the external andinternal morphology/structures of the microphyllsof Selaginella and the megaphyll fronds of ferns. Whichone is effective at photosynthesis? Why?
- Q Would it be useful to use more or less of β-glucanase orβ-xylanase enzyme when testing flour viscosity? Why?
- Q Describe one of the most recent disease outbreaks, and the roleof epidemiologists (descriptive and/or analytical) in addressingit. What questions would you ask an epidemiologist, if you had thechance to interview...
- Q Find recent (within the past year) research regarding hearthealth nutrients: specifically on Omega 3s, Resveratol and ECGC.Explain what these do in terms of heart health physiologyin yourown words thoroughly (...
- Q 1. Identify the structural regions on the illustration from theprevious question. Tree Section Identification: Clues for treespecies identification:Oak Bark- Light to dark grey and scaly Sapwood- Creamy white tolight brown...
- Q A single population becomes separated by a geographicbarrier, and each population acquires genetic differences. Whatcould happen if this barrier is removed and the two populationsinteract and attempt to mate? Refer...
- Q Find recent (within the past year) research regarding the mosteffective heart health nutrients/supplements in addition to CoQ10.Thoroughly explain each of these nutrients in terms of thephysiology of heart health. (1...
- Q What recent evidence has suggested that peroxisomes did not arisevia endosymbiosis?
- Q In a population of 16,000 people, 67 are affected with a mildautosomal recessive condition. What is the estimated number ofcarriers for this condition in this population?
- Q Why is it important to randomly select your plots when samplingspecies diversity?
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