Biology question and answers for July 14, 2024
- Q What are the two serological tests that we used to test for COVID 19 PCR and ELISA ELISA and Microneutralization Microneutralization and rRT PCR
- Q What is the difference between a memorized presentation and an extemporaneous presentation Which one is more effective Why
- Q Why do we use positive control in the reaction To use it as a benchmark result for the unknown test sample To test the efficiency of the PCR To test...
- Q What does real time mean in rRT PCR A relatively small amount of PCR product can be quantified All of these choices It can be used to screen for results...
- Q Although the ELISA test is a powerful technique some of its disadvantages are the relatively long time to obtain a result and its inability to test for an active immune...
- Q Describe the genetic material of SARS CoV 2 O ds DNA ve sense ssRNA ve sense ssRNA 5 DNA Question 4 1 point Listen Why do we use no template...
- Q What are the assay controls in this experiment Positive control negative control and no template control Internal control negative control No controls were used Positive control no template control Question...
- Q What is an amplicon O Target ds DNA none of these ss DNA Target ss viral RNA
- Q Why do we use no template control in the reaction To screen for cDNA To test for viral RNA To screen for any contamination in the reagents To screen for...
- Q Which of the following is not a component of rRT PCR DNA probe virus particle Primers Reverse transcriptase Reaction Buffer
- Q Fluorescent signals from the reporter dye are number of amplicons that are generated Inversely proportional Indirectly proportional Cross wise proportional Directly proportional proportional to the
- Q Serology testing is used to detect previous infection antibodies to SARS CoV 2 in people who may have been exposed to the virus True False Question 6 1 point Listen...
- Q What is meant by the pandemic spread of SARS CoV 2 It spread through the ocean It spreads world wide It spreads only in a certain area It spreads only...
- Q Which serum sample contains antibodies that block infection Sample A Sample B A Neither OB Both
- Q In ELISA the enzyme horseradish peroxidase HRP is bound to the region of the secondary antibody well of microtiter plate SARS CoV 2 antigen the tested sample
- Q 3 Explain what is happening in this image Which type of immune response will this lead to humoral immunity or cell mediated immunity
- Q Why is it necessary to wash the samples repeatedly in ELISA To enhance the interaction between antibody and antigen To remove any proteins or antibodies which are unbound To increase...
- Q bodies are unique and respond to a specific antigen Where does the antigen attach to the antibody structure The variable domains Fab The binding site the variable domains and the...
- Q How many types of controls do you need to have in the Microneutralization Assay One Virus Control Two Sample Control and Virus Control Two Virus Control and Cell Control No...
- Q What is the purpose of the ELISA test for this lab To detect COVID 19 virus from serum in people who might have been infected To produce COVID 19 antibody...
- Q Listen The best classification system is that which most closely a corroborates the classification scheme in use at the time of Charles Darwin b conforms to traditional Linnaean taxonomic practices...
- Q Fill in the blank A colon indicates amino acid positions that have amino acids with A molecular properties
- Q Listen Their primary function of DNA topoisomerase is to cleave DNA strands in order to provide torsional stress relief or to untangle replicating DNA a True b False
- Q Which enzyme makes single strand breaks in DNA backbones a Exonuclease b Topoisomerase c Helicase d Ligase
- Q Topoisomerase does which one of the following a Joins the ends of double stranded DNA molecules b Is required for making recombinant DNA molecules in vitro c Unties knots in...
- Q What is the role of topoisomerases in eukaryotic DNA replication a Topoisomerise enzymes cut uncoil and reseal the double stranded DNA b Topoisomerise enzymes bind to the origin of replication...
- Q Fill in the blank A period indicates amino acid positions that have amino acids with properties A molecular
- Q First among asexually reproducing species what main mechanism produces genetic changes from one generation to the next and how does this mechanism do so Next describe in detail three main...
- Q een pr you com Practice Pedigrees mine the inheritance patern of each of the following pedigrees Then label the genotypes of each individual in the pedigrees
- Q Directions After identifying the amino acid sequences for your gene follow the model below to construct the resulting structure of each protein on your own sheet 1 Using graph paper...
- Q A Phosphate Group Lipid D Nonaqueous Cytosol Nonaqueous Aqueous Nonaqueous Environment Cytosol Environment B C Nonaqueous Cytosol Nonaqueous Environment Nonaqueous Cytosol E F Aqueous Nonaqueous Cytosol Environment Nonaqueous Environment Aqueous...
- Q DNA mRNA OR 1 2 4 5 1 3 4 5 Ligand A Ligand B Protein Protein A Plasma Membrane Protein B Plasma Membrane Exon Intron 2nd Messenger Figure 1...
- Q draw and label a phylogenetic tree of these items door window chair table bed television sta envelope bookshelf sofa and notebook
- Q Label the Dissected Bull Testis
- Q each of the statements as DD for density dependent or DI as density independent 2pts each ch of the statements below involves a situation that will affect the growth of...
- Q What can be inferred from the following statement from the essay Society and Solitude by Ralph Waldo Emerson The solitary river was not solitary enough
- Q How many ATP NADH and FADH2 are generated by just the citric acid cycle
- Q Lieben Students are creating a model that shows bacteria becoming resistant to antibiotics through natural selection They decide to make different drawings and use the following key for their models...
- Q Figure 32 6 Animal skeletons The forelimb and hindlimb bones of these animals differ according to the locomotor functions of the limbs fernur fore metatarsals hindlimb tibia fibula tarsals c...
- Q 2 Read the question and sample response below Determine how many marks out of 4 you would award the response Remember origin purpose content value and limitation must be addressed...
- Q commensalism Small marine animals called barnacles often attach themselves to whales The barnacle benefits from the movement of the water full of food particles past their swimming hosts Although barnacles...
- Q Listen B Match the following pictures to the basic forms of bird wings V High speed wings 1 C Elliptical wings 2 D 3 B Passive soaring wings 4 A...
- Q Select which characteristics fit into the categories of Amniotes or early tetrapod ancestors more permeable skin more keratinized skin 1 Amniotes 2 Early tetrapod ancestor drawing air into lungs pushing...
- Q AOTD What advantage did subdividing the gas bladders into smaller sacs provide for tetrapods Reduced surface area for gas exchange Enhanced ability to breathe underwater Increased buoyancy Increased surface area...
- Q Table 1 TRIAL 1 Results Phenotype of worms worms eaten start worms left in grass worms after reproduction Forest 10 1 9 18 Turquoise 10 9 1 2 Kelly 10...
- Q Variations on Mendelian Inheritance Two gene cross blue eyes Select the crosses that would lead to only blue eyed progeny Choose all that apply Check All That Apply oohh x...
- Q access to higher education changes in the curriculum the recruitment of more professors of color and the creation of ethnic studies programs These programs were the beginning of multicultural cur...
- Q What is the eventual fate of Glyceraldehyde 3 phosphate in the Calvin s cycle It fixes carbon dioxide to form 3 phosphoglycerate It is recycled to form Ribulose 1 5...
- Q The figure shows three spirometry test results The far left graph is A normal Based on the size shape and approximate vital capacity flow volum C this patient shows Flow...
- Q Which of the following may cause restrictive lung disorder Multiple Choice bronchitis smoking asthma lung fibrosis
- Q A patient who has a low FEV1 and a low FEF25 75 in a spirometry test should be diagnosed with Multiple Choice pneumonia restriction obstruction nothing These values are normal
- Q Which of the following is a correct path of air through the respiratory tract Select all that apply Check All That Apply nose to pharynx to larynx to trachea nose...
- Q If someone can exhale forcefully for a short moment and then produces a weak stream of air with lots of wheezing the Multiple Choice FEF25 75 will be high FVC...
- Q How do we calculate the vital capacity Multiple Choice Add expiratory and inspiratory reserve volume and the tidal volume Subtract tidal volume from the sum of expiratory and inspiratory reserve...
- Q Which of the statements correctly describes the vital capacity Multiple Choice The amount of air a person can exhale All the air that can be exhaled after a full inhalation...
- Q orax oc whe air gets to the pleural cavity of the following uld you expect to this happens all that apply Check All That Apply intrapleural pressure would decrease intrapleural...
- Q With COPD there is a decreased air flow from the lungs This could be caused by which of the following reasons Select all that apply Check All That Apply inflammation...
- Q Multiple Choice expiratory reserve volume tidal volume inspiratory reserve volume respiratory volume tidal volume O inspiratory reserve volume expiratory volume O inspiratory reserve volume tidal volume expiratory reserve volume tidal...
- Q Besides oxygen exchange the respiratory system also functions to eliminate Click to select Too much of this gas can cause a r compromising homeostasis Click to select in blood pH...
- Q Q6 2 The rate of plant growth on an island near Isle Royale is such that the carrying capacity of moose on the island is 500 Currently there are 500...
- Q 5 No Child Left Behind was enacted to improve school performance standards and accountability What other component was a part of the improvements desired in No Child Left Behind 1...
- Q Which of the following represents a weakness in using GDP to gauge America s economic health
- Q All of the following increase genetic variation EXCEPT Multiple Choice O mutation random fertilization mitosis independent assortment crossing over
- Q The Rec8 protein holds sister chromatids together during meiosis If an individual has a mutation that prevents degradation of Rec8 this would most likely prevent Multiple Choice normal segregation during...
- Q You are comparing the events of meiosis I in cells from several different organisms You come across one species in which you do hot is Multiple Choice the chromosome pairs...
- Q At the end of meiosis II each of the four resulting cells contains Multiple Choice two full sets of chromosomes each with 2 molecules of DNA one full set of...
- Q Which statement about the reductive division of meiosis is false Multiple Choice During the reductive division sister chromatids migrate to opposite poles of the cell During the reductive division centromeres...
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