Biology question and answers for October 21, 2023
- Q True or false. If you could genetically modify honeybees such that they would express higher levels of juvenile hormone langer, this would result in a shorter lifespan of the typical...
- Q Describe clearly the changes in therapeutic activity that can arise by altering the shape and the size of a lead compound. Refer to specific examples and case-studies to illustrate your...
- Q A researcher has identified a new protein, protein A, which they hypothesise interacts with proteinB. To investigate this interaction, the researcher first wants to determine if the two proteinscolocalise in...
- Q 3. A researcher has identified a new protein, protein A, which they hypothesise interacts with proteinB. To investigate this interaction, the researcher first wants to determine if the two proteinscolocalise...
- Q Students in biology classes at MHS have been conducting an experiment that involves producing bacteria that produce human insulin. In essence, students areplacing an insulin gene from the human pancreas...
- Q How do alkylating agents work?they prevent proteins needed for mitosis from being produced preventing cell divisionthey damage the building blocks of DNA's structure which leads to cell death unless the...
- Q For clean-catch specimens the urine container must be sterile.TrueFalse
- Q What is the purpose of sonication?a) Inserting genes to modify bacterial genomeb) Opening pores in the cell membrane to add new molecules to cellsc) Purifying a specific compound from a...
- Q Why is it important to select a good stationary phase?a) To retain the desired molecules and separate them from the rest of the sampleb) To create a good flow path...
- Q In the context of public health nutrition and what you have learned in this course, what is an incentive? i. A characteristic of a food that encourages consumption (e.g. flavour...
- Q Enalapril is an anti-hypertension "pro-drug" (i.e., a drug precursor) that is inactive until the ethyl ester (arrow in figure) is hydrolyzed by esterases present in blood plasma. The active drug...
- Q E. coli are able to grow in a medium containing ampicillin only if they...A. took up the pGLO plasmid from the environmentB. do not express GFPC. do not produce the...
- Q pGLO is...the gene that encodes for green fluorescencethe plasmid that we use in the lab transformation experimentthe promoter of the gene GLOa fragment of DNA that encodes for a pilusNone...
- Q Streak plate is a method to obtain a pure culture from a mixed culture using aseptic techniques.TrueFalse
- Q Contrast Agglutination versus Precipitation reactions
- Q Which of the following techniques was used to identify the size of CptA?Fetal membrane transversalHemolysis AssayDentaturing-PAGECytotoxicity assay
- Q For the lab final you should be able to explain the purpose of the following media and interpret a positive vs negative result. If a media is selective, you should...
- Q Gel electrophoresis separates DNA fragments based on theirA. weightB. chargeC. sizeD. nitrogen content
- Q After being digested with a restriction enzyme, genomic DNA fragments are separated by gel electrophoresis. Specific fragments can then be identified through the use of a:A. plasmid.B. restriction enzyme.C. sticky...
- Q Containers of ice cream are sold by volume, not by weight. Some ice cream manufacturers pump air into the ice cream before packaging it. Why does this practice make the...
- Q Liquid cultures should be disposed of bya. pouring the contents of the tube into the sink and then washing the tube.b. discarding the tube into the nearest trash can.c. removing...
- Q A mechanism that automatically closes a door leading into a laboratory would be considered an example ofa. primary containment.b. secondary containment.c. tertiary containment.d. quaternary containment.
- Q The California SB 493 stated all California-licensed pharmacists as which of the following?A Patient consultation providersB Advanced practice pharmacistsC. Health care providersD. Medication furnishers
- Q What is the function of a bioreactor?Create multiple copies of DNA.Provide a controlled environment for cell growth.Provide a controlled environment for restriction enzymes to produce recombinant DNACreate multiple copies of...
- Q Which of the following apply to quorum sensing: Group of answer choices A. quorum sensing is a form of bacterial communication within the population B. quorum sensing allows for attachment...
- Q How does a blood spatter analyst determine the direction of travel for blood stains?By looking at the absorptionBy measuring the length and the widthBy looking at the tail, which points...
- Q The process by which small fragments of soluble DNA from the surrounding environment are taken in by a bacterium and inserted into the chromosome is called conjugation.A) TrueB) False
- Q Which is an advantage of genetic engineering?O lack of labeling of food products that have been genetically engineeredO diminished opportunities for organic agricultureO lack of long-term studies on food safety...
- Q Which of the following would not be true of cDNA produced using human brain tissue as the starting material?A.It could be amplified by the polymerase chain reaction. B.It was produced...
- Q Genomic imprinting is generally due to the addition of methyl (-CH3) groups to C nucleotides (as well as chemical changes to histone proteins) in order to silence a given gene....
- Q The Federal Bureau of Investigation (FBI) maintains a database system including software to run it called by the acronym CODIS, for "Combined DNA Index System." (A) What is the main...
- Q Which of the following is true about NoSQL databases? Eventually the database will be consistent, but it's not guaranteed at any specific moment in time NoSQL works faster on big...
- Q Which of the following statements is true when comparing moist heat methods ofmicrobial control to dry heat control?Both moist heat and dry heat methods can achieve complete sterilization.Only moist heat...
- Q 4. What best explains how PCR can be used to detect an infection?Specific temperatures are used to amplify DNA from an infectious agent if it was present in the patient.Specific...
- Q Generalized transduction differs from specialized transduction in thatgeneralized transduction can only transfer certain genesgeneralized transduction can take placebetween different species while specialized transduction cannotgeneralized transduction transfers random DNA fragments while...
- Q Which of the following is NOT true of immunoprecipitation?includes a denaturing stepuses antibody-coated beadsseparates particles using an electric fieldgood for isolating specific proteins from a solution
- Q Which of the following microscopes use UV light?O Darkfield microscopeO Brightfield microscopeO Compound light microscopeO Fluorescence microscopeScanning electron microscope
- Q In the disc diffusion susceptibility test, as the antimicrobic diffuses through the media and the concentration gradient is created, where is the highest level of the antimicrobic?A. The highest level...
- Q Robbie and Saurab are pre-med and pre-pharmacy students, respectively. They complain to their biology professor that they should not have to study plants because plants have little relevance to their...
- Q Which of the following is/are safety issues and ethics of using DNA technology?a. Genetically modified crops must be safe for consumptionb. Determining who has access to someone's genetic informationc. Genetically...
- Q Restriction enzymes create when they cut DNA.a. Sticky endsb. Blunt endsc. Methylated endsd. a and be. a, b and c
- Q The use of an antibiotic-resistance gene on a plasmid used in genetic engineering makesa. replica plating possible.b.selection of the desired clone possible.c. the recombinant cell dangerous.d. the recombinant cell unable...
- Q PCR can be used to isolate a portion of a particular gene becausea. the DNA primer is specific.b. DNA can be electrophoresed.c. all cells have DNA.d. all cells have RNA.
- Q The process of understanding gene function via computer-assisted analysis isa. bioinformatics.b. proteomics.c. reverse genetics.d. forensic microbiology.e. metagenomics.
- Q You want to determine whether a person has a certain mutant gene. The process involves using a primer and a heat-stable DNA polymerase. This process isa. translation.b. restriction mapping.c. transformation.d....
- Q The rise of methicillin-resistant Staphylococcus aureus (MRSA) can be considered to be an example of artificial selection because humans purposefully raise MRSA in large fermenters in an attempt to make...
- Q POSSIBLE POINTS 0 83 A farmer abandons a field The natural changes that occur in the field following the abandonment are considered to be secondary succession because O the ecosystem...
- Q The number and abundance of similar organisms in the biosphere that can successfully interbreed refers to A marine pH diversity B ecosystem diversity C species diversity D genetic diversity
- Q Abiotic factors such as marine pH and the various environments on earth are all part of A genetic biodiversity B population biodiversity C ecological biodiversity D species biodiversity
- Q Sugar maple trees grow broad green leaves to capture sunlight for photosynthesis In cold conditions they drop their leaves and store sugar in their cells to prevent them from freezing...
- Q Question 1 of 24 When a speaker shows partial agreement with a point what is she doing OA Qualifying a point OB Justifying a point OC Using deductive reasoning D...
- Q refers to the decision by a farmer to use genetically engineered crops rather than traditional crops when planting acreage Adoption of genetically engineered crops in the United States 1996 2016...
- Q Male Chad 2016 AGE GROUP Population A developed B developing C post industrial D pre industrial Female According to the age structure diagram shown Chad is most likely which type...
- Q WOLVES 2 2 2 2 2 1950 www 1000 RATA and Overview UK ALA 1979 1009 1900 YEAR AD 2012 The pon bology leware 2009 MOOSE Which of these factors...
- Q C Age percentage of life span A constant loss B early loss C late loss D no loss The curve labeled B in the graph shown is known as survivorship
- Q POPULATION 3215 TIME YEARS The red line on the graph represents A J exponential growth B K carrying capacity C C population limit D S logistic growth
- Q POPULATION SINE Time years The red line on the graph represents A J exponential growth B S logistic growth C E energy limit D K carrying capacity
- Q A B AGE Male Population Female This population pyramid is that of a developed country with a negative population growth Which of the following countries might have growth like this...
- Q Question 78 The is a type of grassland O tundra temperate forest savanna
- Q Looking at this map which statement is supported 1 Point World Population Density 0 30 10 25 25 50 30 75 75 100 100 150 150 300 300 1000 1000...
- Q Which organism directly eats Submerged Aquatic Vegetation SAV in this food web A Herbivorous Duck B Osprey C Bivalves Use the image below to help you answer this question Chesapeake...
- Q Using this diagram which statement is supported 1 Point World Energy Consumption Highest Lowest O Generally countries that have more higher popula tions like China and India use more energy...
- Q Match the type of Biodiversity with it s corresponding description Ecosystem diversity Genetic diversity Species diversity POSSIBLE POINTS 1 67 All the different genes contained in all individual plants animals...
- Q Which of the following is a cause of biodiversity loss Select all that apply Habitat Loss Invasive Species Stable Environments Pollution Planting native plants POSSIBLE POINTS 1 67
- Q Which of the following is the most biodiverse place on land Temperate Rainforest Desert Wetlands Tropical Rainforest POSSIBLE POINTS
- Q Which of the following would INCREASE the population size select all that apply Access to resources food water shelter Increased death rate Decrease in fertility rate Extended life expectancy Immigration...
- Q In many Native American societies women were just as likely to be found among the religious leadership of the tribe as men O True False
- Q A Cells are in interphase 90 of the time In a given sample of 1 000 cells our expected value for the number in interphase would be 900 and the...
- Q A naturally occurring gas that blocks UV radiation in the stratosphere 1 Point 02 CO2 OCH4 14 The accumulation of increasingly large amounts of toxic substances in successively higher levels...
- Q O deforestation overfishing 20 A diverse variety of habitats communities and ecological processes is known as 1 Point O ecosystem diversity O species diversity O genetic diversity O economic diversity
- Q Without being in the presence of light a producer cannot make what A sugars B CO2 C H2O D oxygen
- Q Which of the following best describes how the greenhouse effect works A B C D Greenhouse gases reflect the sun s energy causing it to warm Earth Greenhouse gases absorb...
- Q 6 What are the four main processes that can cause changes in population size Write an equation for the relationship among them 2 marks enline no pritastal to eldsqeo zoeenil
- Q 4 A biologist wanted to estimate the number of endangered Blanding turtles living in a marsh The biologist caught tagged and released a sample of six Blanding turtles in the...
- Q A method used to sustain fish populations and provide resources 1 Point O water treatment plants O aquaculture overfishing 13 People use fires in the Amazon 1 Point O to...
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