Description : Some viruses have RNA but no DNA. This would indicate that – (1) these viruses cannot replicate (2) these viruses have no heritable information (3) RNA transmits the hereditary information in these viruses (4) their nucleic acids can be crystallised
Last Answer : (2) these viruses have no heritable information Explanation: DNA is an informational molecule encoding the genetic instructions Along with RNA and proteins, it is one of the three major macromolecules that are ... guanine, adenine, thymine, and cytosine) recorded using the letters G, A, T, and C.
Description : Select the wrong statement. (a) The term ‘contagium vivum fluidum’ was coined by M. W. Beijerinck. (b) Mosaic disease in tobacco and AIDS in human being are caused by viruses. (c) The viroids were discovered by D.J. Ivanowsky. (d) W.M. Stanley showed that viruses could be crystallised.
Last Answer : (c) The viroids were discovered by D.J. Ivanowsky
Description : Some viruses have RNA but no DNA. This would indicate that– (1) these viruses cannot replicate (2) these viruses have no heritable information (3) RNA transmits the hereditary information in these viruses (4) their nucleic acids can be crystallised
Last Answer : these viruses have no heritable information
Description : New treatment modalities designed to modulate host defense mechanisms that have been demonstrated conclusively to be of benefit include: a. Gut decontamination b. Anti-LPS antibody c. Anti-TNF antibody d. Thymopentin e. None of the above
Last Answer : Answer: e Selective gut decontamination involves the use of orally administered antibiotics that achieve a high intraluminal level directed against gram-negative aerobes and yeast, leaving ... but conclusive evidence that concurrent reduction of infection-related mortality occurs is not available
Description : What is found in some viruses and are external lipid membranes borrowed from the host cell.?
Last Answer : Lipid membrane called the Envelope
Description : A viral load test detects the A- provirus of HIV in infected cells B- .total amount of virus in the infected host C- number of viruses being released by each infected cell D- .amount of bacteriophage being produced by E. coli cells
Last Answer : provirus of HIV in infected cells
Description : Recombination of virus genomes occurs A- by transduction B- by transcription C- simultaneous infection of a host cell by two viruses with homologous chromosomes D- by transformation
Last Answer : simultaneous infection of a host cell by two viruses with homologous chromosomes
Description : Stones or insoluble mass of crystallised salts formed withini te kidneys is called
Last Answer : Stones or insoluble mass of crystallised salts formed withini te kidneys is called
Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II A. Glycosuria (i) Accumulation of uric acid in joints B. Gout (ii) Mass of crystallised salts within the kidney ... (iii) (iv) (c) (ii) (iii) (i) (iv) (d) (iv) (i) (ii) (iii)
Last Answer : (d) (iv) (i) (ii) (iii)
Description : Why do viruses depend of host cells?
Last Answer : What is the answer ?
Description : How do viruses attach to host cells?
Last Answer : By binding to receptors
Description : The non-living characteristic of viruses is – (1) ability to multiply only inside the host (2) ability to cause diseases in the host (3) ability to undergo mutation (4) ability to be crystallise
Last Answer : (4) ability to be crystallise Explanation: Viruses are known as a connecting link between non-living and living being.
Description : What is true about viruses without exception? (1) They contain a core of RNA (2) They can infect bacteria (3) They cannot produce antibodies (4) They can multiply only in host cells
Last Answer : (4) They can multiply only in host cells Explanation: Viruses do not contain enzymes for energy production or protein synthesis. For a virus to multiply, it must invade a host cell and direct the host ... proteins, and copies of its nucleic acid, using the host cell's ATP to power the reactions.
Description : The oncogene theory states that transforming genes a. Normally Occur In The Host Genome. b. Can Exist In Viruses. c. Are Not Of Viral Origin. d. All Of The Above (A—C) Are Correct.
Last Answer : d. All Of The Above (A—C) Are Correct
Description : Usually viruses are separated into several large groups based primarily on A.nature of the host B.nucleic acid characteristics C.capsid symmetry D.diameter of the viroin or nucleocapsid
Last Answer : A.nature of the host
Last Answer : They can multiply only in host cells
Description : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host. Reason
Last Answer : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside ... both the assertion and reason are false
Description : Is space, time, demonstrated?
Last Answer : What do you mean “demonstrated”? And do you mean “spacetime”? If so then it’s all around you. Gravity is a result of spacetime.
Description : Are any conclusions worth believing regardless of whether they can be demonstrated to be accurate?
Last Answer : For question #3: http://www.space.com/18737-nasa-satellite-sees-earth-breathe-video.html
Description : If Canada and the United States were to merge into one country, what best demonstrated practices of each country should be adopted by all?
Last Answer : I’m sure Americans would appreciate some better healthcare, and I’m sure Canada would appreciate our hardcore, unregulated capitalism lol…..Ok I’m just kidding, but I’m having a hard time thinking of something good the United States could offer….
Description : Can you explain why we should give citizenship status to people who have demonstrated a willingness to break our laws?
Last Answer : Actually, that sounds like a good idea to me. I’m no expert on immigration, but it seems to me that if they’re living here, they might as well be paying taxes and contributing to our society. I’m looking forward to these other responses.
Description : In your experience, has the pandemic exposed inequities has it demonstrated how people can come together in circumstances of need ?
Last Answer : Sure it's had a part in exposing inequities, it's very easy to see that the only people who have benefited from the pandemic are the rich, billionaire s only get richer while everyone else has only gotten poorer.
Description : Who firstly demonstrated experimentally the existence of electromagnetic wave? -General Knowledge
Last Answer : The answer is 'Hertz'
Last Answer : answer:
Description : which property of light is being demonstrated in this technique?
Last Answer : Reflection
Description : Who demonstrated for the first time that in photosynthesis, oxygen is evolved from water
Last Answer : Who demonstrated for the first time that in photosynthesis, oxygen is evolved from water A. Spirogyra B. Volvox C. Chlamydomonas D. Chlorella
Description : Essentiality of light in photosynthesis can be demonstrated by
Last Answer : Essentiality of light in photosynthesis can be demonstrated by A. Molles half leaf experiment B. ... C. Inverted funnel experiment D. KOH solution
Description : What mixing method demonstrated in baking products?
Last Answer : 4.What mixing method demonstrated in baking products?
Description : In Pavlov's experiment with dogs in which he demonstrated classical conditioning which was the bell's ring called after being paired with the meat powder so that it now produced salivation?
Last Answer : conditioned stimulus
Description : Which of Newton's laws of motion is demonstrated when a car applies its brakes on an icy surface but the car continues to slide along the surface?
Last Answer : Newton's First Law: objects at rest tend to stay at rest,objects in motion tend to stay in motion. When the brakes areapplied, the friction with the road surface is the force that stopsthe car -- on ice, this friction is greatly reduced.
Description : In pavlovs experiment with dogs in which he demonstrated classincal conditioning what term defines the dogs salivation in response to only rhe ringing of the bell?
Last Answer : Feel Free to Answer
Description : What Chinese practice Demonstrated the believe that china were superior to other nations?
Description : What did The Pueblo Revolt of 1680 demonstrated?
Description : In Pavlov's experiment with dogs in which he demonstrated classical conditioning what term was used to indicate the dog's salivation when the meat powder was placed on its tongueIn Pavlov's experiment?
Description : What is the Atlantic Charter demonstrated American and British unity in?
Last Answer : Need answer
Description : What kind of sentence error is demonstrated below To children, animals are an important part of learning about life. Perhaps more important than any teaching.?
Last Answer : I don’t understand the question
Description : Which of the following statement(s) is/are true concerning ischemia reperfusion injury? a. During ischemia, ATP degradation results in increased plasma and intracellular levels of ... immunization with antibodies to neutrophil adhesive complex lessen the ischemic/reperfusion microvascular injury
Last Answer : Answer: a, b, c, d During the ischemia and hypoperfusion phase, degradation of ATP stores essential to maintain cell integrity and significant loss of diffusible ... either the neutrophil adhesive complex or the endothelial selectins dramatically lessens ischemia/reperfusion microvascular injury
Description : If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually ... is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous
Last Answer : Answer: a, c Identification of a necrotizing, soft tissue infection mandates immediate operative intervention with aggressive resection of all involved tissues and empiric ... remains without controlled trials demonstrating any additional benefits derived from hyperbaric oxygen therapy
Description : Which of the following statements regarding fibroblasts and their function in wound healing are true? a. IL-1 has both inhibitory and promotional effects on fibroblast growth b. TNFa ... EGF (epithelial growth factor) has been demonstrated to accelerate epidermal regeneration in cutaneous wounds
Last Answer : Answer: a, d IL-1 appears to be important in the process of normal wound repair. IL-1 has been shown to stimulate skin fibroblast and keratinocyte growth, as well as ... that recombinant EGF enhances keratinocyte migration. EGF is also a potent chemoattractant for granulation tissue fibroblasts
Description : Which of the following factors have been demonstrated to promote wound healing in normal individuals? a. Vitamin A supplementation b. Vitamin C supplementation c. Vitamin E application to the wound d. Zinc supplementation e. None of the above
Last Answer : Answer: e Several important systemic factors or conditions influence wound healing. Interestingly, there are no known systemic conditions that lead to enhanced or more rapid wound healing. ... support the concept that supranormal provision of these factors enhance wound healing in normal patients
Description : Which of the following statement(s) is/are true concerning pharmacologic agents used to accelerate wound healing? a. A number of these agents are now currently approved for use in ... healing in chronic wounds d. Growth hormone functions by promoting fibroblast proliferation and collagen synthesis
Last Answer : Answer: b, c Currently there are no approved clinical agents that accelerate normal healing. Although a number of clinical trials are in progress, no agents are currently ... hormone administration significantly accelerates donor site healing, presumably due to its effects in minimizing catabolism
Description : Which of the following drugs has demonstrated in vitro activity against Mycobacterium avium-intracellular(MAI)? (a) Vancomycin (b) Clarithromycin (c) Erythromycin base (d) Troleandomycin (e) Erythromycin estolate
Last Answer : Ans: B
Description : Who among the following demonstrated experimentally that simple organic molecules like sugar s and amino acids could be produced from inorganic molecules if early earth atmosphere is created (a) Donald Brown (b) A.I. Oparin (c) Oscar Miller (d) Stanley Miller
Last Answer : Ans:(d)
Description : (2) stabilise the colloid and prevent crystallisation Explanation: Gelatine, being a colloid, has the property of preventing crystallization. In ice lollies and icecream this is demonstrated by the formation ... does not become grainy or sandy due to the slow crystallisation of lactose with time.
Last Answer : Glycol is added to aviation gasoline because it - (1) reduces evaporation of petrol (2) increases efficiency of petrol (3) prevents freezing of petrol (4) reduces consumption of petrol
Description : The proper method of connecting an ammeter in a circuit is demonstrated by which of the diagrams shown in the illustration? EL-0041 A. A B. B C. C D. All of the above
Last Answer : Answer: D
Description : Who firstly demonstrated experimentally the existence of electromagnetic wave?
Last Answer : Hertz
Description : Fat emboli are best demonstrated in the lungs by C A. PCR B. Chromatography C. Frozen section examination of tissues stained with Sudan red D. None of these
Last Answer : Frozen section examination of tissues stained with Sudan red
Description : Cellular totipotency was demonstrated by (a) Theodore Schwann (b) A.V. Leeuwenhoek (c) F.C. Steward (d) Robert Hooke.
Last Answer : (c) F.C. Steward