Myeloma cells and lymphocytes can be fused by using (A) Calcium chloride (B) Ethidium bromide (C) Polyethylene glycol (D) DNA polymerase

Myeloma cells and lymphocytes can be fused by using (A) Calcium chloride (B) Ethidium bromide (C) Polyethylene glycol (D) DNA polymerase
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The DNA fragments separated on an agarose gel can be visualised after staining with (a) acetocarmine (b) aniline blue (c) ethidium bromide (d) bromophenol blue.

Description : The DNA fragments separated on an agarose gel can be visualised after staining with (a) acetocarmine (b) aniline blue (c) ethidium bromide (d) bromophenol blue.

Last Answer : (c) ethidium bromide

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.

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

The DNA fragments separated on an agarose gel can be visualised after staining with : (1) Acetocarmine (2) Aniline blue (3) Ethidium bromide (4) Bromophenol blue

Description : The DNA fragments separated on an agarose gel can be visualised after staining with : (1) Acetocarmine (2) Aniline blue (3) Ethidium bromide (4) Bromophenol blue

Last Answer : (3) Ethidium bromide

Which of the following enhances or induces fusion of protoplasts? (a) IAA and kinetin (b) IAA and gibberellins (c) Sodium chloride and potassium chloride (d) Polyethylene glycol and sodium nitrate

Description : Which of the following enhances or induces fusion of protoplasts? (a) IAA and kinetin (b) IAA and gibberellins (c) Sodium chloride and potassium chloride (d) Polyethylene glycol and sodium nitrate

Last Answer : (d) Polyethylene glycol and sodium nitrate

Monoclonal antibodies are prepared by cloning (A) Myeloma cells (B) Hybridoma cells (C) T-Lymphocytes (D) B-Lymphocytes

Description : Monoclonal antibodies are prepared by cloning (A) Myeloma cells (B) Hybridoma cells (C) T-Lymphocytes (D) B-Lymphocytes

Last Answer : Answer : B

What is the role of polyethylene glycol in somatic hybridization? -Biology

Description : What is the role of polyethylene glycol in somatic hybridization? -Biology

Last Answer : answer:

Polyethylene glycol method is used for (a) biodiesel production (b) seedless fruit production (c) energy production from sewage (d) gene transfer without a vector.

Description : Polyethylene glycol method is used for (a) biodiesel production (b) seedless fruit production (c) energy production from sewage (d) gene transfer without a vector.

Last Answer : (d) gene transfer without a vector.

The mineral halite is: w) potassium chloride x) sodium chloride y) calcium chloride z) calcium bromide

Description : The mineral halite is: w) potassium chloride x) sodium chloride y) calcium chloride z) calcium bromide

Last Answer : ANSWER: X -- SODIUM CHLORIDE

Ethylene oxide reacts with HBr to give (a) 1-Bromoethanol (b) Ethyl bromide (c) 2-Bromoethanol (c) Ethylene glycol

Description : Ethylene oxide reacts with HBr to give (a) 1-Bromoethanol (b) Ethyl bromide (c) 2-Bromoethanol (c) Ethylene glycol

Last Answer : 2-Bromoethanol

Myeloma cells are lacking in (A) TMP synthetase (B) Formyl transferase (C) HGPRT (D) All of these

Description : Myeloma cells are lacking in (A) TMP synthetase (B) Formyl transferase (C) HGPRT (D) All of these

Last Answer : Answer : C

Which one of the following polymers is widely used for making bullet proof material? (1) Polyvinyl chloride (2) Polyamides (3) Polyethylene (4) Polycarbonates

Description : Which one of the following polymers is widely used for making bullet proof material? (1) Polyvinyl chloride (2) Polyamides (3) Polyethylene (4) Polycarbonates

Last Answer : (4) Polycarbonates Explanation: Ballistic nylon was the standard cloth used for bulletproof vests until the 1970s. In 1965, Stephanie Kwolek, a chemist at Du Pont, invented Kevlar, trademark ... terephthalamide, a liquid polymer that can be spun into aramid fiber and woven into cloth.

Which one among the following polymers is used for making bullet-proof material? (1) Polyvinyl chloride (2) Polystyrene (3) Polyethylene (4) Polyamide

Description : Which one among the following polymers is used for making bullet-proof material? (1) Polyvinyl chloride (2) Polystyrene (3) Polyethylene (4) Polyamide

Last Answer : (3) Polyethylene Explanation: A bullet-proof material is made of polyethylene. It is a higher grade of the plastic found in Tupperware.

Identify the group in which all the polymers mentioned can be used to make fibres. (A) Butadiene copolymers, Polyamides, Urea-formaldehyde (B) Cellulose derivatives, Polyisoprene, Polyethylene (C) Cellulose derivatives, Polyamides, Polyurethane (D) Polypropylene, Poly vinyl chloride, Silicon

Description : Identify the group in which all the polymers mentioned can be used to make fibres. (A) Butadiene copolymers, Polyamides, Urea-formaldehyde (B) Cellulose derivatives, Polyisoprene, Polyethylene (C) Cellulose derivatives, Polyamides, Polyurethane (D) Polypropylene, Poly vinyl chloride, Silicon

Last Answer : (B) Cellulose derivatives, Polyisoprene, Polyethylene

Catalytic activity of salivary amylase requires the presence of (A) Chloride ions (B) Bromide ions (C) Iodide ions (D) All of these

Description : Catalytic activity of salivary amylase requires the presence of (A) Chloride ions (B) Bromide ions (C) Iodide ions (D) All of these

Last Answer : A

Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Description : Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Last Answer : Ans: B

All of the following statements about RNA-dependent DNA polymerase are true except: (A) It synthesizes DNA using RNA as a template (B) It is also known as reverse transcriptase (C) It synthesizes DNA in 5’→3’ direction (D) It is present in all the viruses

Description : All of the following statements about RNA-dependent DNA polymerase are true except: (A) It synthesizes DNA using RNA as a template (B) It is also known as reverse transcriptase (C) It synthesizes DNA in 5’→3’ direction (D) It is present in all the viruses

Last Answer : Answer : D

Lymphocytes are responsible for the formation of (A) Serum (B) Plasma (C) Antibody (D) Calcium

Description : Lymphocytes are responsible for the formation of (A) Serum (B) Plasma (C) Antibody (D) Calcium

Last Answer : Answer : C

At which stage of HIV infection does one usually show symptoms of AIDS? (a) Within 15 days of sexual contact with an infected person (b) When the infected retro virus enters host cells (c) When HIV damages large number of helper T  - lymphocytes (d) When the viral DNA is produced by reverse transcriptase

Description : At which stage of HIV infection does one usually show symptoms of AIDS? (a) Within 15 days of sexual contact with an infected person (b) When the infected retro virus enters host cells (c) ... large number of helper T  - lymphocytes (d) When the viral DNA is produced by reverse transcriptase

Last Answer : (c) When HIV damages large number of helper T  - lymphocytes

Statement-1: Sodium chloride is added during electrolysis of fused anhdrous magnesium chloride. Statement-2: Anhydous magnesium chloride is obtained b

Description : Statement-1: Sodium chloride is added during electrolysis of fused anhdrous magnesium chloride. Statement-2: Anhydous magnesium chloride is obtained b

Last Answer : Statement-1: Sodium chloride is added during electrolysis of fused anhdrous magnesium chloride. Statement-2: ... -1 is false but Statement -2 is true

The metal A is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on t

Description : The metal A is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on t

Last Answer : The metal A is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from ... is A. Al B. Ca C. Cu D. Zn

Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Description : Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Last Answer : Ethyl chloride

Can a myeloma patient still harvest stem cells for transplant if they've already started chemo?

Description : Can a myeloma patient still harvest stem cells for transplant if they've already started chemo?

Last Answer : Protocols for multiple myeloma vary, so it depends on whether an autologous stem cell transplant is planned for your treatment. It’s not clear to me why there was an apparent rush, but you need to check with your oncologist.

Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Description : Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Last Answer : (d) hybrid cells resulting from myeloma cells.

Antibodies produced by a single clone of myeloma cells are referred to as _____ antibodies. a. Chimeric b. Monoclonal c. Polyclonal d. Hybrid

Description : Antibodies produced by a single clone of myeloma cells are referred to as _____ antibodies. a. Chimeric b. Monoclonal c. Polyclonal d. Hybrid

Last Answer : b. Monoclonal

A synthetic nucleotide analogue, 4-hydroxypyrazolopyrimidine is used in the treatment of (A) Acute nephritis (B) Gout (C) Cystic fibrosis of lung (D) Multiple myeloma

Description : A synthetic nucleotide analogue, 4-hydroxypyrazolopyrimidine is used in the treatment of (A) Acute nephritis (B) Gout (C) Cystic fibrosis of lung (D) Multiple myeloma

Last Answer : Answer : B

In increase in α2-Globulin with loss of albumin in urine suggests (A) Primary immune deficiency (B) Nephrotic syndrome (C) Cirrhosis of liver (D) Multiple myeloma

Description : In increase in α2-Globulin with loss of albumin in urine suggests (A) Primary immune deficiency (B) Nephrotic syndrome (C) Cirrhosis of liver (D) Multiple myeloma

Last Answer : Answer : B

In one of the following the quality of the protein synthesized is affected: (A) Diabetes mellitus (B) Gont (C) Multiple myeloma (D) Primaquine sensitivity

Description : In one of the following the quality of the protein synthesized is affected: (A) Diabetes mellitus (B) Gont (C) Multiple myeloma (D) Primaquine sensitivity

Last Answer : Answer : C

Bence Jones proteins may be excreted in urine of patients suffering from (A) Tuberculosis (B) Diabetes mellitus (C) Multiple myeloma (D) Hyperthyroidism

Description : Bence Jones proteins may be excreted in urine of patients suffering from (A) Tuberculosis (B) Diabetes mellitus (C) Multiple myeloma (D) Hyperthyroidism

Last Answer : Answer : C

Which one is a true statement regarding DNA polymerase used in PCR? (a) It is used to ligate introduced DNA in recipient cells. (b) It serves as a selectable marker. (c) It is isolated from a virus. (d) It remains active at high temperature.

Description : Which one is a true statement regarding DNA polymerase used in PCR? (a) It is used to ligate introduced DNA in recipient cells. (b) It serves as a selectable marker. (c) It is isolated from a virus. (d) It remains active at high temperature.

Last Answer : (d) It remains active at high temperature.

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

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

Which one is a true statement regarding DNA polymerase used in PCR ? (1) It remains active at hight temperature (2) It is used to ligate introduced DNA in recipient cells (3) It serves as a selectable marker (4) It is isolated from a virus

Description : Which one is a true statement regarding DNA polymerase used in PCR ? (1) It remains active at hight temperature (2) It is used to ligate introduced DNA in recipient cells (3) It serves as a selectable marker (4) It is isolated from a virus

Last Answer : (2) It is used to ligate introduced DNA in recipient cells

Which of the following is a specific inhibitor of the enzyme alcohol dehydrogenase and is useful in the treatment of methanol poisoning: A. Disulfiram B. Ethylene glycol C. Calcium leucovorin D. Fomepizole

Description : Which of the following is a specific inhibitor of the enzyme alcohol dehydrogenase and is useful in the treatment of methanol poisoning: A. Disulfiram B. Ethylene glycol C. Calcium leucovorin D. Fomepizole

Last Answer : D. Fomepizole

What is aluminum bromide plus chlorine yields aluminum chloride and bromine?

Description : What is aluminum bromide plus chlorine yields aluminum chloride and bromine?

Last Answer : The chemical equation is:2 AlBr3 + 3 Cl2 = 2 AlCl3 + 3 Br2

Which of the following has highest solubility in ionic solvent? (a) Silver iodide (b) Silver bromide (c) Silver chloride (d) Silver fluoride

Description : Which of the following has highest solubility in ionic solvent? (a) Silver iodide (b) Silver bromide (c) Silver chloride (d) Silver fluoride

Last Answer : Ans:(d)

To reduce tooth decay most toothpastes contain a – (1) Bromide (2) Fluoride (3) Iodide (4) Chloride

Description : To reduce tooth decay most toothpastes contain a – (1) Bromide (2) Fluoride (3) Iodide (4) Chloride

Last Answer : (2) Fluoride Explanation: Fluoride in toothpastes prevent tooth, decay from progressing and can even reverse, or stop, early tooth decay. It works by promoting a chemical reaction in tooth enamel ... itself into enamel weakened by acid attack, making the tooth more resistant to future acid attacks.

Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Description : Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Last Answer : (2) Silver bromide Explanation: Silver bromide, a soft, paleyellow, water insoluble salt well known for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.

Which of the following chemicals is used in photography? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Description : Which of the following chemicals is used in photography? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Last Answer : (2) Silver bromide Explanation: Silver bromide (AOBr), a soil , pale-yellow, water insoluble salt well known (along with other silver hali(les) for its unusual sensitivity to light:. This ... making the Shroud of Turin. The salt can be found naturally as the mineral bromargyrite (bromyrite).

Nalgonda technique is used for (a) Chloride (b) Fluoride (c) Bromide (d) Cadmium

Description : Nalgonda technique is used for (a) Chloride (b) Fluoride (c) Bromide (d) Cadmium

Last Answer : (d) Cadmium

Which of the following compounds will react with methylmagnesium bromide to give tert-butyl alcohol? (a) Acetyl chloride (b) Acetone (c) Isopropyl alcohol (d) Acetaldehyde

Description : Which of the following compounds will react with methylmagnesium bromide to give tert-butyl alcohol? (a) Acetyl chloride (b) Acetone (c) Isopropyl alcohol (d) Acetaldehyde

Last Answer : Acetone

The law of multiple proportions is illustrated by the two compounds [NCERT 1972] (A) Sodium chloride and sodium bromide (B) Ordinary water and heavy water (C) Caustic soda and caustic potash (D) Sulphur dioxide and sulphur trioxide

Description : The law of multiple proportions is illustrated by the two compounds [NCERT 1972] (A) Sodium chloride and sodium bromide (B) Ordinary water and heavy water (C) Caustic soda and caustic potash (D) Sulphur dioxide and sulphur trioxide

Last Answer : (D) Sulphur dioxide and sulphur trioxide

Which of the following forms the weakest acid in aqueous solution? w) hydrogen fluoride x) hydrogen chloride y) hydrogen bromide z) hydrogen iodide

Description : Which of the following forms the weakest acid in aqueous solution? w) hydrogen fluoride x) hydrogen chloride y) hydrogen bromide z) hydrogen iodide

Last Answer : ANSWER: W -- HYDROGEN FLUORIDE

Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Description : Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Last Answer : ANSWER: W -- POTASSIUM BROMIDE

The pH of water will be decreased to below pH 7 by the hydrolysis of which of the following? w) sodium carbonate x) sodium chloride y) ammonium chloride z) potassium bromide

Description : The pH of water will be decreased to below pH 7 by the hydrolysis of which of the following? w) sodium carbonate x) sodium chloride y) ammonium chloride z) potassium bromide

Last Answer : ANSWER: C -- AMMONIUM CHLORIDE

Under similar conditions, which of the following i is the best reducing agent under similar conditions? w) fluoride ion x) chloride ion y) bromide ion z) iodide ion

Description : Under similar conditions, which of the following i is the best reducing agent under similar conditions? w) fluoride ion x) chloride ion y) bromide ion z) iodide ion

Last Answer : ANSWER: Z -- IODIDE ION 

To reduce tooth decay most toothpastes contain a (1) Bromide (2) Fluoride (3) Iodide (4) Chloride

Description : To reduce tooth decay most toothpastes contain a (1) Bromide (2) Fluoride (3) Iodide (4) Chloride

Last Answer : Fluoride

Which halide is used in making sensitive emulsion on photograhic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Description : Which halide is used in making sensitive emulsion on photograhic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Last Answer :  Silver bromide 

Which of the following chemicals is used in photography ? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Description : Which of the following chemicals is used in photography ? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Last Answer : Silver bromide

MHC class II proteins are present on the surface of (A) All cells (B) B lymphocytes only (C) Macrophages only (D) Macrophages and B lymphocytes

Description : MHC class II proteins are present on the surface of (A) All cells (B) B lymphocytes only (C) Macrophages only (D) Macrophages and B lymphocytes

Last Answer : Answer : D

Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils

Description : Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils

Last Answer : Answer : B

Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Description : Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Last Answer : Answer : C