Biology question and answers for September 17, 2023
- Q Search for the following infections; Amebiasis,Trypanosomiasis, Leishmaniasis,Chagas disease, Malaria,Schistosomiasis, Paragonimiasis,and Filariasis, using the CDC and WHO web site forparasite infections. Millions of people are infected globally bythese parasites and thousands...
- Q If you graft together a long-day rootstock plant and a short-dayscion plant, what will induce flowering?a. Long days, since the rootstock senses day lengthb. Both long and short days due...
- Q 1. Explain three reasons why a mutation in a single allele mightbe difficult to detect in a population.2. Why is natural selection the most likely evolutionarymechanism to lead to adaptation?...
- Q osteoclast cellsWhat type of organism is the cell found in? Where in theorganism is the cell found? What is its function or duty? How doesit contribute to the ability of...
- Q Compare and contrast the Instructional Theory and Clonal SelectionTheory explaining specificity of the immune response.
- Q An example of ongoing natural selection that dramaticallyaffects humans is the evolution of drug-resistant strains ofpathogenic bacteria that can proliferate very quickly. With that inmind, explain how the following statement...
- Q In studying a particular bio-molecule (a protein, nucleic acid,carbohydrate, or lipid) in the laboratory, the biochemist firstneeds to separate it from other biomolecules in the sample—that is,to purify it. Specific...
- Q Write down all the food items you consume in one complete day.Assemble information from food labels, menus, and dietary tables tocalculate the number of grams of proteins, carbohydrates, and fatsconsumed....
- Q listing the five greatest advances in the field of immunology inthe last 40 years. Of course, this is a matter of opinion (to areasonable extent), Be sure to include reasons...
- Q Identify a molecular diagnostic technique. For the technique youselect, write a paragraph describing 4 pre-analyticalvariables.
- Q Research the categories of growth media listed below. Describethe use of each one. Name at least two media found in each categoryand the organisms that can grow on each. If...
- Q Suppose you wish to be outstanding in your field by studyingplant cell biology. You discover a new strain of wild lima beanplants from Costa Rica that is resistant to being...
- Q For which one of the following observations were both Lamarck'shypothesis and Darwin's hypothesis in complete agreement?More complex species are descended from less complexspecies.Gradual evolutionary change explains why organisms arewell-suitedto their...
- Q Please fill out the definition of each term1.           Antigen presentation 
2.           Antigen presenting cell (APC) 
3.           Antigen receptor 
4.           Adaptive immunity 
5.           Adjuvant 
6.           Afferent 
7.           Affinity maturation 
8.           Allele 
9.           Allelic exclusion 
10.       Anergy 
11.       Antibody 
12.       Antibody...
- Q For the following four very diversified human populations, whatare the greatest and least number of alleles for an autosomal gene,a X- linked gene, and a Y-linked gene, respectively?– Population I:...
- Q write a HAIKU for immunology about barrier, so the Haiku shouldbe about barrier.
- Q You are designing different liposomes for drug delivery throughthe blood stream and for skin application as a topical lotion.Describe your selection of lipids for each application that wouldensure that liposomes...
- Q You are designing different liposomes for drug delivery throughthe blood stream and for skin application as a topical lotion.Describe your selection of lipids for each application that wouldensure the liposomes...
- Q (i) What role does the sensory qualities of food have indetermining body weight regulation (60%), (ii)outline key differences in the sensory perception of nutrientsbetween lean and obese individuals (20%), consideradditional...
- Q Ions of iodine react with enzyme amylase and used asquantative test for measuring quantity of amylase. However, ions ofiodine react with enzyme amylopectin very slightly. Why.
- Q a) in mark and recapture method, how does the variation invalues of N (estimated size) change as a function of the size ofthe recapture sample (when we increase the recapture...
- Q What is the “window period†for HIV infection?The first three days after exposureBetween nine and ten years after exposureBetween 2-weeks and 3-months after exposureBetween 6-weeks and 6-months after exposure
- Q Each year the Community Planning Groups determine the prioritypopulations for HIV prevention in Nevada after reviewing currentepidemiological data and discussing rates and trends of HIVinfection in the state. What priority...
- Q Failing total abstinence as a prevention method, what is anotherpreventive measure that can reduce the risk of HIVtransmission?Washing off your syringe after use with waterCircumcisionAssuming your partner is “cleanâ€Having sex...
- Q Lichens are well known combination of an alga and afungus where fungus has(a) a saprophytic relationship with the alga(b) an epiphytic relationship with the alga(c) a parasitic relationship with alga(d)...
- Q f there are 100 individuals in a population and 20 arehomozygous for B, 60 are heterozygous, and 20 are homozygous for b,what is the allele frequency of B? 80 percent
- Q Where do the casparian bands occur(a) epidermis(b) endodermis(c) pericycle(d) phloem.
- Q As a tree grows older, which of the following increasesmore rapidly in thickness?(a) heart wood(b) sap wood(c) phloem(d) cortex.
- Q 1. Read and construct 10 questions with Correct answers on foodsafety below The questions and answers that you provide should bewritten in the correct “jeopardy†format-answers first andquestions second. The...
- Q A true-breeding strain of peas with round seeds and atrue-breeding strain of peas with wrinkled seeds are crossed.Their offspring (F1) are allowed to self-fertilize and producean F2 generation.  Round pea seeds...
- Q Potted plants may die if they get too much of a good thing. Withwhat you now know about water relations in plants, why might it beharmful to a plant to...
- Q Organisms, which fix atmospheric nitrogen in the soil,fall under the category of(a) bacteria(b) green algae(c) soil fungi(d) mosses.
- Q Abiology class wants to perform an experiment to investigate theeffect of different colors of light of green yellow red and clearcellophane and Plant three seeds in each one.what part do...
- Q Rita is a 105 pound 19 year-old college student who, as part ofa sorority hazing ritual, attempted to drink 2 gallons of waterover a 1 hour period. She made it...
- Q The text raises excellent questions about ethicalissues related to using technology in genetics, such as. If youcould select three genetic traits for your children, which oneswould you select? How would...
- Q What are the three mechanism used to close/open channels? Whatis the difference between channels made of proteins withbeta-pleated sheets versus alpha helix structures? Give an exampleof each.What type of amino...
- Q Skin creams that claim to stop the process of aging is abillion-dollar business. What are the differences between young andold skin? What factors can impact the aging process? What are...
- Q DNA is the blueprint not only for the organism but for all theparts of the cell. How does DNA dictate the functions of aparticular cell (by the production of proteins)?...
- Q After watching Frontline’s Endgame: AIDS in BlackAmerica, answer the following questions in a separate Worddocument and attach it below. Be sure to include very obviousheaders for each question answered.What was...
- Q summarize the process by which the genomic library of P.fluorescensDNA was created.In fact, I don’t understand the question, please help meanswer this question, if you would explain this question in...
- Q -----design an experiment to determine the concentration of HbA1c inthe blood sample by following these six stepsStep 1, pick one differentiating characteristicStep2 how will u probe that differentiating characteristicStep3 tell...
- Q The process of movement requires and interactionbetween muscle fibres and bone tissue to pull about a joint.Construct an information leaflet that can be used at a local Gym toexplain the...
- Q How is it that a single photopigment can give a differentresponse to different wavelengths, yet an organism with only onereceptor type (and one variety of photopigment) does not have truecolor...
- Q b) Explain the structure of bone and cartilagetissues, how this relates to their functions and explain thedifferences between them.c) Explain the key conditions for adequate bone development andmaintenance
- Q Considering that there are thousands of genes that influencethousands of traits are you surprised by the amount of variabilitythat you see in your own family or a family that you...
- Q a) Draw diagrams of fibrous, cartilaginous andsynovial joints ensuring that they are fully annotated.b) Explain, with examples, the structure of each of these types ofjoint and how this relates to...
- Q The oestrous cycle is a characteristic of(a) human females only(b) mammalian females other than primates(c) human males only(d) mammalian males other than primates.
- Q Uricotelism is found in(a) mammals and birds(b) fish and fresh water protozoans(c) birds, land reptiles and insects(d) frogs and toads.
- Q Please Type Answer or Dont BotherAnswering!Read the two scenarios below. Identify which is sympatricspeciation and which is allopatric speciation. Provide anexplanation to support each answer.Two species of bee orchids grow...
- Q Describe the three most common routes by which chemicals enterthe body and subsequently interact with cells.
- Q Explain the difference between ionizing radiation andnonionizing radiation in terms of both physical characteristics andhealth effects.
- Q What taxonomic group would include those in the Out of Africatheory (OOA), but not Homo sapiens neaderthalensis?
- Q Question: How does poliovirus replicate in the epithelial cellof intestine? Describe in detail, not only main idea.
- Q Escherichia coli fully labelled with 15N isallowed to grow in 14N medium. The two strands of DNAmolecule of the first generation bacteria have(a) different density and do not resemble parent...
- Q A cell-coded protein that is formed in response toinfection, with most animal viruses, is called(a) histone(b) antibody(c) interferon(d) antigen.
- Q Create separate 7days meal plan for:a) a child 12 years and underb) a teenagerc) a teenager involved in sports
- Q Which one of the following pairs is not correctlymatched?(a) syphilis – Trichnris trichiura(b) sleeping sickness – Trypanosoma gambiense(c) dengue fever – arbovirus(d) plague – Yersinia pestis.
- Q Hypothesize about the colors of light that chlorophyll pigmentswill absorb to some degree, based on the color of light theyreflect (green).
- Q how gene Gpr56 could be used to develop new treatment formyelin sheath disorders?
- Q Conventional wisdom dictates that a low-fat diet rich in fruits,vegetables, and grains keeps you “heart healthy,†yetlow-carbohydrate, high fat diets are popular for weight loss (whichincreases heart health) and for...
- Q 1. Howdoes penicillin act on a bacterial cell - or stated another way -what is the mechanism of action of penicillin? what is the cellulartarget of the antibiotic?2. Whydoes penicillin...
- Q Sexual reproduction is an evolutionary puzzle. Label thelettered parts of your answer. A. Why is sex a puzzle; what are itscosts? Don’t merely list them; describe how each is a...
- Q Anthropologists believe that, several million years ago, ourancestors colonized an ecological niche different from the oneoccupied by the other African apes. Label the lettered parts ofyour answer. A. What is...
- Q Howdoes a bacterial endosperm differ from a vegetative cell of thatbacterium? Your answer should consider both structure andfunction.
- Q Please Type Answer or Dont BotherAnswering!Predict what would happen to the carbon cycle if plants were nota part of it. Provide an explanation for your prediction.
- Q What is protein synthesis?
- Q Describe the two binaural cues used by the auditory system tolocalize sounds in space. What aspects of the interaction of thesound with the listener lead to the existence of these...
- Q Describe the experiment by Hofman, Van Riswick, and Van Opsal(1998). What is an HRTF, i.e., how is it measured? Describe thechanges in performance that occur with experience listening withear molds....
- Q How does the redox potential relate to the affinity a moleculehas for electrons? How does the redox potential explain the pathwayelectrons take through the electron transport chain?What are the 3...
- Q Are sex chromosomes only found in germ cells (i.e., gametes orsex cells)? Explain.
- Q How did the evolution of photosynthesis alter the course ofevolution. Please be at least 7 sentences and be descriptive abouthow it changed evolution.
- Q Please Type Answer or Dont BotherAnswering!Describe two ways that humans have contributed to the extinctionof different species.
- Q Describe how changing one amino acid in an enzyme could affectthe function of that enzyme. Be sure to include in your answer howthis change could affect the various levels of...
- Q Please Type Answer or Dont BotherAnswering!Explain how fossils provide evidence for the process ofevolution.
- Q Please Type Answer or Dont BotherAnswering!Define the term carrying capacity. Explain the reasonevery environment has a carrying capacity.
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