Description : Excision repair would correct DNA damage caused by a. Antibiotics. b. UV Light. c. A Chemical Mutagen. d. A Dna Replication Error.
Last Answer : b. UV Light.
Description : What needs to come into consideration when using UV light to sterilize? a. It Needs Direct Exposure b. It Can Cause Skin Cancer c. It May Not Be Effective Against All Kinds Of Endospores d. A-C Are Correct
Last Answer : d. A-C Are Correct
Description : One indirect way to determine microbial growth is using a _____. a. UV light b. Spectrophotometer c. Light meter d. Radioactive counter
Last Answer : b. Spectrophotometer
Description : Which of the following is NOT a carcinogen? a. Genetic factors b. UV light c. Certain chemicals d. X rays
Last Answer : a. Genetic factors
Description : Suitable method of sterilization of powders is - - - - - - - - A Autoclaving B Hot Air Oven C UV radiation D Gaseous
Last Answer : B Hot Air Oven
Description : Which of the following chemicals are halogens used for disinfection? a. Phenol b. Alcohol c. Detergent d. Chlorine
Last Answer : d. Chlorine
Description : Differentiate between mutant and mutagens.
Last Answer : The plants which are genetically changed by using chemical are called mutants and the agent which brings about changes in plants are called mutagens.
Description : What are mutagens?
Last Answer : The agents which bring about genetic changes in plants are called mutagens.
Description : Haploids are more suitable for mutation studies than the diploids. This is because (a) haploids are more abundant in nature than diploids (b) all mutations, whether dominant or recessive ... more stable than diploids (d) mutagens penetrate in haploids more effectively than in diploids.
Last Answer : (b) all mutations, whether dominant or recessive are expressed in haploids
Last Answer : Ans: Agents that cause mutations
Description : ____ is examples of drugs that are derived from the metabolism of microorganisms. a. Salvarsan b. Prontosil c. Penicillin d. A-C are correct
Last Answer : c. Penicillin
Description : Before bacterial cells are simple stained and observed with the light microscope, they must be a. Smeared on a slide. b. Heat fixed. c. Air dried. d. All the above (A—C) are correct.
Last Answer : d. All the above (A—C) are correct.
Description : Trimethoprim and sulfamethoxazole are examples of synthesis. a. Sulfonamides; PABA b. Penicillins; Cell Wall c. Sulfonamides; Folic Acid d. Macrolides; Protein
Last Answer : c. Sulfonamides; Folic Acid
Description : All of the following are examples of communicable diseases except: a. Chickenpox. b. Measles. c. The common cold. d. Tetanus
Last Answer : d. Tetanus.
Description : All the following are examples of asexual spore formation except: a. Arthrospores. b. Conidia. c. Sporangiospores. d. Basidiospores.
Last Answer : d. Basidiospores.
Description : Which of the following are examples of repair mechanisms in cells? a. mismatch repair b. excision repair c. DNA polymerase d. DNA ligase e. all are important in fixing mutations
Last Answer : e. all are important in fixing mutations
Description : Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.
Last Answer : d. May Have Information For Antibiotic Resistance.
Description : Will the UV light from a bug zapper placed over my pond hurt the frogs' eyes?
Last Answer : No. The sun’s UV rays have never hurt frogs and I doubt the frogs would be staring directly at the UV light anyway…
Description : Any suggestions for a good UV/black light?
Last Answer : Just one thing – blacklight tends to make, er, protein stains show up. Bathroom not exactly the place to be proclaiming where someone marked their territory, if y’know what I mean.
Description : Is it possible to have a fabric that just allows UV light through ?
Last Answer : Yes. That material is called Transol. Here is a non-technical article about it. Here is where you can buy it.
Description : Are fish pond UV light ballasts typically somehow connected to the water pump?
Last Answer : They should be two totally unrelated things. Question about your pump. Is it an external or internal pump? If its external it could have been ruined in the same way the ballast was.
Description : Can a full spectrum light be substituted for a UV light?
Last Answer : I’m not certain, but I don’t think so. If you have a window that gets a lot of sunlight you can try leaving him (her) there while the sun is shining. Pet stores usually have UV lights that can clip onto things, too.
Description : Do I need special camera preparation or elements to shoot under UV light?
Last Answer : Shutter speed. Slowing the shutter speed will allow you to get the effect you're looking for since it's allowing more light to come in. What you'll want to do is turn off all source of light ... I do know of a a person on fluther that has some photography experience I'll recommend this thread to.
Description : How do you remove cum stains so that UV light won't show it?
Last Answer : I’ve tried many ways to do that haha. But I still haven’t been successful! The best thing I can think of is bleach, because washing it doesn’t seem to help!
Description : Do our eyelids block out UV light?
Last Answer : Well, I found an abstract of a study that measured UV and visible light transmission through eyelids. It found that while up to 77% of visible light is transmitted, negligible amounts of UV make it through (the URL is ... 't allow me to make a link out of it, but if you're interested I'll PM it).
Description : what is uv light
Last Answer : Need Answer
Description : $ Ergosterol is a lipid that changes to vitamins D on activation by UV light. ! Iron is a biochemical compoent of haemoglobin.
Last Answer : $ Ergosterol is a lipid that changes to vitamins D on activation by UV light. ! Iron is a biochemical ... is wrong D. If both As and R are wrong.
Description : What color is the plant extract under UV light?
Last Answer : Need answer
Description : What is the temperature of a UV light?
Last Answer : the temperature of a UV light is 10nm-400 degrees fahrenheit
Description : How can uv light affect an organism's trait?
Last Answer : Feel Free to Answer
Description : Which one of the following is used for determining the structure of crystal - (1) Gamma rays (2) X-rays (3) UV rays (4) visible light
Last Answer : (2) X-rays Explanation: Crystallography is the science that examines crystals which can be found everywhere in nature, from salt to snowflakes to gemstones.
Description : The radiant energy having lowest energy is – (1) gamma rays (2) UV rays (3) visible light (4) microwave radiation
Last Answer : (4) microwave radiation Explanation: The parts of the electromagnetic spectrum, arranged from highest energy to lowest, are gamma rays, Xrays, Ultraviolet light, visible light, infrared light, microwaves, and radio waves.
Description : Which component of the protein absorb UV light at 280 nm?
Last Answer : Indole ring of tryptophan.
Description : UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None
Last Answer : A. Ionizing Radiations (Answer)
Description : In gel electrophoresis, separated DNA fragments can be visualized with the help of (a) acetocarmine in bright blue light (b) ethidium bromide in UV radiation (c) acetocarmine in UV radiation (d) ethidium bromide in infrared radiation.
Last Answer : (b) ethidium bromide in UV radiation
Description : Chlorobenzene can be prepared by treatment of aniline with (a) Cuprous chloride (b) Chlorine in the presence of UV light (c) Nitrous acid followed by treatment with CuCl (d) Chlorine in the presence of FeCl3
Last Answer : Nitrous acid followed by treatment with CuCl
Description : Toluene reacts with bromine in the presence of uv light to give (a) m-Bromotoluene (b) Benzyl bromide (c) o-Bromotoluene (d) Benzoyl bromide
Last Answer : Benzyl bromide
Description : Which of the following reagents will react with methyl group rather than the benzene ring in methylbenzene? (a) Chlorine in the presence of uv light (b) CH3Cl in the presence of AlCl3 (c) CH3COCl in the presence of AlCl3 (d) Hydrogen in the presence of nickel
Last Answer : Chlorine in the presence of uv light
Description : How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4 (c) 6 (d) 8
Last Answer : 2
Description : Which of the following HPLC detectors is used as a bulk property or general purpose detector? A. Electrochemical detector B. Fluorescence detector C. UV-Visible detector D. Evaporative Light scattering detector
Last Answer : D. Evaporative Light scattering detector
Description : The radiant energy having lowest energy is (1) gamma rays (2) UV rays (3) visible light (4) microwave radiation
Last Answer : microwave radiation
Description : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .
Last Answer : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV ... D. X is not correct, Y is correct.
Description : Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. (i) DNA is negatively charged molecule and so it is loaded on gel towards the anode terminal. (ii) DNA ... (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv)
Last Answer : (d) (i), (ii) and (iv)
Description : Given the following statements : S1 : If L is a regular language then the language {uv | uϵL, vϵLR} is also regular. S2 : L = {wwR} is regular language. Which of the following is true ? (A) S1 is not ... S2 is correct. (C) S1 is correct and S2 is not correct. (D) S1 is correct and S2 is correct.
Last Answer : (C) S1 is correct and S2 is not correct.
Description : Antibodies contain two identical_____ chains, and two identical _____ chains. a. right, left b. constant, variable c. heavy, light d. Fab, Fc
Last Answer : c. heavy, light
Description : An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two ... from two heavy chains. d. One variable region from a constant region and one from a variable region.
Last Answer : a. One variable region from a light chain and one from a heavy chain.
Description : The characteristic sign of rubella is a. Orchitis. b. Pale-pink maculopapular rash. c. Fiery red rash on cheeks and ears. d. High fever and sensitivity to light.
Last Answer : b. Pale-pink maculopapular rash.
Description : For bactericidal activity,__________ has/have the ability to cause thymine dimer formation. a. X rays b. B ultraviolet light a. Gamma Rays b. Microwaves
Last Answer : b. B ultraviolet light
Description : Bacteria of genus Nitrosomonas use __________ as their electron source. A.ammonia B.H2S C.succinate D.light
Last Answer : A.ammonia
Description : The cell mass can be measured optically by determining the amount of light scattered by a suspension of cells. The measurements are usually at a wavelength of A.300-400nm B.400-500nm C.500-600nm D.600-700nm
Last Answer : D.600-700nm