Biology question and answers for October 07, 2023
- Q explain how scientists were able to suggest a moleculeassociated with heredity using strains of pneumonia-causingbacteria. In your explanation include, one control experiment andat least one experiment as proof of such...
- Q 1)List the B-cell developmental stages from pre-pro toimmature B cells describing B-cell receptor (BCR or Ig)rearrangements occurring and/or key events occurring at eachstage.2)What is the role of Artemis in V(D)J...
- Q Provide a definition of non–random mating, selection and geneticdrift.Describe at least one technique used to localize genes along thechromosomesHow can the expression of genes be monitored using a reportergene?.Describe both...
- Q (Select all correct answers; one or more than one answer may becorrect.) In cases of renal failure, plasma (extracellular)concentrations of K+ may increase from normal levels of4-5 mM to 10...
- Q Directly from the book \"World Prehistory and Archaeology\" byMichael Chazan, What are megafauna? Compare and contrast theextinction of megafauna in North America with that inAustralia.
- Q The renin-angiotensin system (RAS) is a signalling pathway thatacts as a homeostatic regulator of vascular function. Its systemicactions include the regulation of blood pressure, natriuresis, andblood volume control. ACE2 is...
- Q Describe how you could separate a mixture of cytochrome C,ferritin and an enzyme X (MW 450 kDa and pI 8.4) using only onechromatography column. Be sure to include the type...
- Q 1)Describe the structure (membrane) and function of organelles,mitochondria, chloroplasts, nucleus, lysosomes.2) State the color of gram negativr and gram positive bacteriain each step of the gram staining procedure ( more...
- Q In Plant physiology1. The control of development in plants is more “plasticâ€(“flexibleâ€) than in animals. Provide one piece of experimentalevidence that supports this statement.2. Glutamate synthetase is central to nitrate...
- Q Use the article to answer these questions. Let me know if youneed more information.What question was asked?Summarize the main points of the article—what is the primarygoal or aim of the...
- Q 1. Before reading info from the textbook, what did you believeabout the amount of carbohydrate you should have in yourdiet?2. After reading info from the textbook, why does the bodyrequire...
- Q Which food groups are often missing from high-calorie,energy-dense diets?
- Q Answer for Cabbage:What microbes are involved in the process?What is the purpose of adding the ingredients in yourrecipe?What metabolic processes are the microbes undergoing – whatspecific by-products are they producing...
- Q Why does signaling through a peptide growth factor (suchas Epidermal Growth Factor) allow for more rapid responses in acell than signaling through a steroid hormone such asestrogen?
- Q 1) All living organisms, including bacteria, plants, humans andother animals, are made up of one or more cells. Explain why allliving organisms need to have DNA. Include the words genes...
- Q A microelectrode delivers a current pulse that depolarizes thepresynaptic terminal above threshold. Describe the events thatoccur (in molecular detail) immediately after depolarization. Youranswer should finish with the response of the...
- Q What are the reproductive strategies for plantreproduction?
- Q According to the abc model of floral development, which geneswould be expressed in a showy ornamental flower with multiplesepals and petals but no stamens or carpels? Please explain youranswer.
- Q Give the correct term for the followinga-A developing embryob-Second phase of seed development after cell division.c-The mature ovary wall that develops into a fruit wall.d-The oil bodies on the outside...
- Q Labster - Bacterial Growth Curves ExtensionLearner OutcomesBI280-04 Compare and contrast the growth and reproduction ofmicroorganisms.BI280-04.02 Compare the phases of microbial growth and describe therelation to generation time.Lab ExtensionAt 82% progress...
- Q Indicate whether the individualvolunteering to donate blood for homologous transfusion should beaccepted or deferred.A. Defer Temporarily       B. Defer for 6 Months   C. DeferPermanently          D. Accept E. Accept After Obtaining Medical Approval_D._...
- Q Compare the facial prognathism and cranial capacity in apes andhominins. How do hominins differ from apes in their facialprognathism? Their cranial capacity?How do apes and hominins compare with regard to...
- Q OUTLINE the differences in the envelope structures ofGram-positive and Gram-negative bacteria. You may use diagrams or atable.Describe the behavior of chemotaxis in bacteria. Make sure tomention how the flagella contributes...
- Q Identify and briefly explain two advantages and twodisadvantages of individual-level epidemiologic studies over rodentbioassays in assessing the public health hazard of a chemical
- Q An aminoacyl-tRNA exhibits which one of the followingcharacteristics?A.It is produced by a synthetase that is specific for the aminoacid, but not the tRNAB.It is composed of an amino acid esterified...
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