Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above
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Auto radiography
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Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Description : Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : (3) Auto radiography Explanation: Radioactive elements can be traced out in living cell through a technique called Autoradiography.

Organelles can be separated from cell homogenate through (a) chromatography (b) X-rays diffraction (c) differential centrifugation (d) auto-radiography

Description : Organelles can be separated from cell homogenate through (a) chromatography (b) X-rays diffraction (c) differential centrifugation (d) auto-radiography

Last Answer : (c) differential centrifugation

A sharp moving boundary is obtained between the pure solvent and solute containing layer in (A) Chromatography (B) Immuno Reactivity (C) Ultra Centrifugation (D) Solubility curve

Description : A sharp moving boundary is obtained between the pure solvent and solute containing layer in (A) Chromatography (B) Immuno Reactivity (C) Ultra Centrifugation (D) Solubility curve

Last Answer : Answer :C

In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be (A) Higher, as it gives higher wavelength (B) Lower, as it gives higher wavelength (C) Higher, as it gives shorter wavelength (D) Lower, as it gives shorter wavelength

Description : In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be (A) Higher, as it gives higher wavelength (B) Lower, as it gives higher wavelength (C) Higher, as it gives shorter wavelength (D) Lower, as it gives shorter wavelength

Last Answer : (C) Higher, as it gives shorter wavelength

The sorting out of molecules according to size and shape may be adapted to protein purification in this technique: (A) Adsorption chromatography (B) Gel filtration chromatography (C) Paper chromatography (D) None of these

Description : The sorting out of molecules according to size and shape may be adapted to protein purification in this technique: (A) Adsorption chromatography (B) Gel filtration chromatography (C) Paper chromatography (D) None of these

Last Answer : Answer : B

The following technique makes use of the difference in net charges of proteins at a given pH: (A) Thin layer chromatography (B) Ion exchange chromatography (C) High performance liquid chromatography (D) Paper chromatography

Description : The following technique makes use of the difference in net charges of proteins at a given pH: (A) Thin layer chromatography (B) Ion exchange chromatography (C) High performance liquid chromatography (D) Paper chromatography

Last Answer : Answer : B

This technique takes the advantage of the fact that each protein has different pH at which it is electrically neutral i.e., its isoelectric pH: (A) Isoelectric focussing (B) Immunoel Ectro Phoresis (C) Chromatography (D) HPLC

Description : This technique takes the advantage of the fact that each protein has different pH at which it is electrically neutral i.e., its isoelectric pH: (A) Isoelectric focussing (B) Immunoel Ectro Phoresis (C) Chromatography (D) HPLC

Last Answer : Answer : A

The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography

Description : The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography

Last Answer : Answer : D

The basis of the technique of chromatography for separating components of a mixture is? A. the differing movement of particles of different mass in an electrical field B. the interaction of the components with a stationary and a mobile phases C. the absorption of infrared radiation by the components. D. the deflection of charged particles in a magnetic field.

Description : The basis of the technique of chromatography for separating components of a mixture is? A. the differing movement of particles of different mass in an electrical field B. the interaction of the ... infrared radiation by the components. D. the deflection of charged particles in a magnetic field. 

Last Answer : the interaction of the components with a stationary and a mobile phases

The washing machine works on the principle of – (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of – (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : (4) Centrifugation Explanation: Washing machines work on the principle of centrifugation. They are based on medium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis.

The working principle of a washing machine is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Description : The working principle of a washing machine is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Last Answer : (1) centrifugation Explanation: The working of the washing machine is quite high tech, and includes a set sequence of washing, rinsing, and spinning (plus a pre-wash if desired).

The washing machine works on the principle of - (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of - (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : (4) Centrifugation Explanation: Washing machines work on the principle of centrifugation. They are based on medium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis.

The working principle of a 'Washing machine' is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Description : The working principle of a 'Washing machine' is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Last Answer : (1) centrifugation Explanation: The principle behind the spinning dry of the clothes in a washing machine is centrifugal force. The fast spinning around of the clothes in the drum creates a large ... wet clothes are flung outwards to the drum edge and the water escapes through the drum holes.

The washing machine works on the principle of (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : Centrifugation

Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and archegoniophores are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.

Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.

Last Answer : (d) Origin of seed habit can be traced in pteridophytes.

85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes

Description : 85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes

Last Answer : Origin of seed habit can be traced in pteridophytes

Why are some elements radioactive and some not?

Description : Why are some elements radioactive and some not?

Last Answer : It depends on the stability of the nucleus. As nuclei get bigger, they get less stable and therefore are radioactive.

Most of what we call background radiation comes from two sources. One is the naturally radioactive elements around us. What is the other source?

Description : Most of what we call background radiation comes from two sources. One is the naturally radioactive elements around us. What is the other source?

Last Answer : ANSWER: COSMIC RADIATION

In a spent fuel assembly, the radioactive elements having the longest half-lives are the: w) fission products x) actinides y) activation products z) radioisotopes of lead

Description : In a spent fuel assembly, the radioactive elements having the longest half-lives are the: w) fission products x) actinides y) activation products z) radioisotopes of lead

Last Answer : ANSWER: X -- ACTINIDES

What's the difference between radiology and radiography?

Description : What's the difference between radiology and radiography?

Last Answer : ‘Ology’ means the study of, and ‘graphy’ refers to images. So, my guess would be that radiography would have to do with taking photographs with radio waves, and radiologists would analyze those images. But, I could be wrong.

Which rays are produced by cobalt-60 in industrial radiography ?

Description : Which rays are produced by cobalt-60 in industrial radiography ?

Last Answer : Gamma rays.

What are the safety measures to be taken while doing Radiography?

Description : What are the safety measures to be taken while doing Radiography?

Last Answer : Ensure a competent person is surveying outside the barricaded area with survey meter. The crew is authorized and following safety precautions. The controlled area is calculated, evacuated and barricaded with Yellow/Black tapes, warning signs (a minimum 4 no’s) and Red or Yellow flash lights.

In what condition a work permit can be issued for Radiography?

Description : In what condition a work permit can be issued for Radiography?

Last Answer : The controlled area is calculated, evacuated and barricaded with Yellow/Black tapes, warning signs (a minimum of 4 no’s), and Red or Yellow flash lights. 

Which one of the following techniques is safest for the detection of cancers? (a) Magnetic resonance imaging (MRI) (b) Radiography (X-ray) (c) Computed tomography (CT) (d) Histopathological studies

Description : Which one of the following techniques is safest for the detection of cancers? (a) Magnetic resonance imaging (MRI) (b) Radiography (X-ray) (c) Computed tomography (CT) (d) Histopathological studies

Last Answer : (a) Magnetic resonance imaging (MRI)

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. (A) X-rays (B) γ-rays (C) α-rays (D) β-rays

Description : Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. (A) X-rays (B) γ-rays (C) α-rays (D) β-rays

Last Answer : (B) γ-rays

Which of the following statements concerning the use of radiography for children is incorrect? A. techniques are the same as those used in adults B. easier because of the smallness of the child’s mouth C. made difficult by the child’s nervousness and his tendency to gag D. helpful in overcoming some of these difficulties are consideratehandling of the child, the use of small size film and the use of ultra speed

Description : Which of the following statements concerning the use of radiography for children is incorrect? A. techniques are the same as those used in adults B. easier because of the smallness of the child' ... are consideratehandling of the child, the use of small size film and the use of ultra speed

Last Answer : B. easier because of the smallness of the child’s mouth

Stimulant purgatives are contraindicated in the following: A. Bed ridden patients B. Before abdominal radiography C. Spastic constipation D. Atonic constipation

Description : Stimulant purgatives are contraindicated in the following: A. Bed ridden patients B. Before abdominal radiography C. Spastic constipation D. Atonic constipation

Last Answer : C. Spastic constipation

Can e-mail addresses & other personal informations be traced through your IP address?

Description : Can e-mail addresses & other personal informations be traced through your IP address?

Last Answer : In most cases, no. You are likely to be using a dynamic IP address that is changing. You could be traced to the owner of the IP block from which it was allocated (almost certainly your ISP ... d have to be doing something seriously bad before anyone would allocate the time and resources to find you.

A streamline is a line in flow field, (A) That is traced by all the fluid particles passing through a given point (B) Along which a fluid particle travels (C) Such that at every point on it, the velocity is tangential to it (D) None of these

Description : A streamline is a line in flow field, (A) That is traced by all the fluid particles passing through a given point (B) Along which a fluid particle travels (C) Such that at every point on it, the velocity is tangential to it (D) None of these

Last Answer : (C) Such that at every point on it, the velocity is tangential to it

They were traditionally made from bone, quill, ivory or gold and silver, if you could afford such ostentation. Mass production is traced to the American entrepreneur Charles Forster who noticed young boys selling similar objects made of Spanish willow while travelling through Brazil. He returned to Boston in 1870 and set up a factory that used white birch as raw material because it was tasteless. What business did Forster thus begin?

Description : They were traditionally made from bone, quill, ivory or gold and silver, if you could afford such ostentation. Mass production is traced to the American entrepreneur Charles Forster who noticed young ... white birch as raw material because it was tasteless. What business did Forster thus begin?

Last Answer : Toothpicks.

Isolation of cellular components to determine their chemical composition is called (A) Cell differentiation (B) Chromatography (C) Cell fractionation (D) All of these

Description : Isolation of cellular components to determine their chemical composition is called (A) Cell differentiation (B) Chromatography (C) Cell fractionation (D) All of these

Last Answer : (C) Cell fractionation

State the condition for using the method of centrifugation to separate contents of a mixture.State the principle involved in this process. -Chemistry

Description : State the condition for using the method of centrifugation to separate contents of a mixture.State the principle involved in this process. -Chemistry

Last Answer : The basic principle of centrifugation is that the denser particles remain at the bottom and the lighter particles will remain at the top. it can be used with like colloids to separate suspended particles are separated by churning the liquid at high speed

Lipoprotiens may be identified more accurately by means of (A) Electrophoresis (B) Ultra centrifugation (C) Centrifugation (D) Immunoelectrophoresis

Description : Lipoprotiens may be identified more accurately by means of (A) Electrophoresis (B) Ultra centrifugation (C) Centrifugation (D) Immunoelectrophoresis

Last Answer : Answer : D

The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these

Description : The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these

Last Answer : Answer : C

The working principle of a washing machine is? A. Diffusion B. Reverse osmosis C. Dialysis D. Centrifugation

Description : The working principle of a washing machine is? A. Diffusion B. Reverse osmosis C. Dialysis D. Centrifugation

Last Answer : ANSWER: D

If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the(A) Sedimentation(B) Flocculation(C) Dispersion(D) Centrifugation

Description : If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the (A) Sedimentation (B) Flocculation (C) Dispersion (D) Centrifugation

Last Answer : (D) Centrifugation

DNA fragments generated by the restriction endo- nucleases in a chemical reaction can be separated by (a) electrophoresis (b) restriction mapping (c) centrifugation (d) polymerase chain reaction.

Description : DNA fragments generated by the restriction endo- nucleases in a chemical reaction can be separated by (a) electrophoresis (b) restriction mapping (c) centrifugation (d) polymerase chain reaction.

Last Answer : (a) electrophoresis

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Description : Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Last Answer : (A) Chemical coagulation

In which of the following techniques the sample is kept below triple point? (A) Lyophilization (B) Spray drying (C) Spray congealing (D) Centrifugation

Description : In which of the following techniques the sample is kept below triple point? (A) Lyophilization (B) Spray drying (C) Spray congealing (D) Centrifugation

Last Answer : (A) Lyophilization

Which technique has helped in investigation of Calvin cycle? (a) X-ray crystallography (b) X-ray technique (c) Radioactive isotope technique (d) Intermittent light

Description : Which technique has helped in investigation of Calvin cycle? (a) X-ray crystallography (b) X-ray technique (c) Radioactive isotope technique (d) Intermittent light

Last Answer : (c) Radioactive isotope technique

The line traced by a single fluid particle as it moves over a period of time is called __________ line. (A) Stream (B) Path (C) Equipotential (D) None of these

Description : The line traced by a single fluid particle as it moves over a period of time is called __________ line. (A) Stream (B) Path (C) Equipotential (D) None of these

Last Answer : (B) Path

Classic OOP - Object Oriented programming can be traced back to a language called Simula, and in particular Simula 67, which was popular during the _____: a) 1930s b) 1960s c) 1950s d) None of These

Description : Classic OOP - Object Oriented programming can be traced back to a language called Simula, and in particular Simula 67, which was popular during the _____: a) 1930s b) 1960s c) 1950s d) None of These

Last Answer : b) 1960s

The earth's gravitational force field is said to be conservative force field because a.The work acted by the earth's gravitational field on a particle is independent on the path traced out by the particle b.The work acted by the erth's gravitational field will cause same path for all particles irrespective of their mass c.The direction of gravitational force is fixed d.The gravitational field has only single directional component always acting normal to a body e.The value of gravitational force rise is fixed

Description : The earth's gravitational force field is said to be conservative force field because a.The work acted by the earth's gravitational field on a particle is independent on the path traced out by ... directional component always acting normal to a body e.The value of gravitational force rise is fixed

Last Answer : a. The work acted by the earth's gravitational field on a particle is independent on the path traced out by the particle

Which of the following derivations does a top-down parser use while parsing an input string ? The input is scanned from left to right. (A) Leftmost derivation (B) Leftmost derivation traced out in reverse (C) Rightmost derivation traced out in reverse (D) Rightmost derivation

Description : Which of the following derivations does a top-down parser use while parsing an input string ? The input is scanned from left to right. (A) Leftmost derivation (B) Leftmost derivation traced out in reverse (C) Rightmost derivation traced out in reverse (D) Rightmost derivation

Last Answer : (A) Leftmost derivation

The process of changing of one element into another is called (a) radioactive decay (b) transmutation of the elements (c) covalent bond formation (d) hybridization

Description : The process of changing of one element into another is called (a) radioactive decay (b) transmutation of the elements (c) covalent bond formation (d) hybridization

Last Answer : Ans:(b)

The elements with filled electron shells are called _______ a. Inert Elements. b. Active Elements. c. Radioactive Elements. d. Bonded Electrons.

Description : The elements with filled electron shells are called _______ a. Inert Elements. b. Active Elements. c. Radioactive Elements. d. Bonded Electrons.

Last Answer : d. Bonded Electrons.

Can my internet posts be traced to my IP address?

Description : Can my internet posts be traced to my IP address?

Last Answer : It’s certainly possible, but not terribly likely.

The earliest that you've traced your family tree; how far back?

Description : The earliest that you've traced your family tree; how far back?

Last Answer : I easily traced us back to Daniel Boone, and if the records on ancestry.com are reliable, I traced my mom’s side back to William the Conqueror.

How far into history have you traced your family tree & were there any surprising revelations for you?

Description : How far into history have you traced your family tree & were there any surprising revelations for you?

Last Answer : My family tree is clear back to the late 1700’s. I have a former president, rock star, country singer, and noted author that was the biggest surprise of all.

Have you traced your family tree?

Description : Have you traced your family tree?

Last Answer : The most juicy tidbit I know of is that my paternal great grandfather immigrated illegally from Poland to New York via Mexico, and later got enough money to pay for his wife to ship over. (My ... in the States for many many generations. I hadn't ever heard any juicy gossip about my ancestors)