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Human Insulin Is Being Commercially Produced From A Transgenic Species Of?

a) Rhizobium b) Mycobacterium c) Escherichia d) Saccharomyces Answer: c) Escherichia... View Article

Main Objective Of Production/Use Of Herbicide Resistant Gm Crops Is To?

a) encourage eco-friendly herbicides b) eliminate weeds from the field without the use of herbicides c) eliminate weeds from the field... View Article

Which One Of The Following Proved Effective For Biological Control Of Nematode Disease In Plants?

a) Gliocladium virens b) Pseudomonas cepacia c) Pisolithus tinctorius d) Paecilomyces lilacinus Answer: b) Pseudomonas cepacia... View Article

The Linking Of Antibiotic Resistance Gene With The Plasmid Vector Became Possible With?

a) DNA polymerase b) Endonucleases c) DNA ligase d) Exonucleases Answer: c) DNA ligase Explanation: DNA ligase help to link foreign DNA... View Article

Modern Detergents Contain Enzyme Preparations Of?

a) Thermoacidophiles b) Alkaliphiles c) Acidophiles d) Thermophiles Answer: c) Acidophiles... View Article

Cry 1 Endotoxins Obtained From Bacillus Thuringiensis Are Effective Against?

a) Nematodes b) Flies c) Mosquitoes d) Boll worms Answer: d) Boll worms Explanation: The cotton bollworm is regulated by the proteins... View Article

Which One Of The Following Is The Correct Statement Regarding The Particular Psychotropic Drug Specified?

a) Morphine leads to delusions and disturbed emotions b) Opium stimulates nervous system and causes hallucinations c) Hashish causes after... View Article

Which One Of The Following Pairs Of Codons Is Correctly Matched With Their Function Or The Signal For The Particular Amino Acid?

a) AUG, ACG - start/methionine b) UAG, UGA - stop c) GUU, GCU - alanine d) UUA, UCA - leucine Answer: b) UAG, UGA - stop Explanation:... View Article

To Which Type Of Barriers Under Innate Immunity Do The Saliva In The Mouth And The Tears From The Eyes Belong?

a) physiological barriers b) cellular barriers c) cytokine barriers d) physical barriers Answer: a) physiological barriers... View Article

Gel Electrophoresis Is Used For?

a) construction of recombinant DNA by joining with cloning vectors b) separation of DNA fragments according to their size c) cutting of DNA... View Article

For ordinary terrestrial experiments, the observer in an inertial frame in the following cases is

1) a child revolving in a giant wheel 2) a driver in a sports car moving with a constant high speed of 200 kmh-1 on a straight rod 3) the pilot... View Article

A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 m height further, find the magnitude of the force. (take, g =10 ms^-2.)

1) 4 N 2) 16 N 3) 20 N 4) 22 N Answer: 4) 22 N Solution: Consider the equation v2 - u2 =2as for the upward journey Final velocity of... View Article

Physical independence of force is a consequence of

1) third law of motion 2) second law of motion 3) first law of motion 4) All of the above Answer: 3) first law of motion Solution:... View Article

A man of weight mg is moving up in a rocket with an acceleration of 4g. The apparent weight of the man in the rocket is

1) zero 2) 4 mg 3) 5 mg 4) mg Answer: 2) 5 mg Solution: Apparent weight = m(g + 4g) = 5mg... View Article

An object of mass 5 kg is attached to the hook of a spring balance and the balance is suspended vertically from the roof of a lift. The reading on the spring balance when the lift is going up with an acceleration of 0.25 ms^-2 is taken, (take, g = 10 ms^-2)

1) 51.25 N 2) 48.75 N 3) 52.75 N 4) 47.25 N 5) 55 N Answer: 1) 51.25 N Solution: When the lift is going upwards F = mg + ma Force... View Article

A body of mass 4 kg is accelerated up by a constant force, travels a distance of 5 m in the first second and a distance of 2 m in the third second. The force acting on the body is

1) 2 N 2) 4 N 3) 6 N 4) 8 N Answer: 3) 6 N Solution: Displacement in the nth second is given by Sn = u + (a/2)(2n -1) For the first... View Article

A person is sitting in a lift accelerating upwards. Measured weight of person will be

1) less than actual weight 2) equal to actual weight 3) more than actual weight 4) None of the above Answer: 3) more than the actual weight... View Article

A wire, which passes through the hole in a small bead, is bent in the form of a quarter of a circle. The wire is fixed vertically on the ground as shown in the figure. The bead is released from near the top of the wire and it slides along the wire without friction. As the bead moves from A to B, the force it applies to the wire is

1) always radially outwards 2) always radially inwards 3) radially outwards initially and radially inwards later 4) radially inwards initially... View Article

If ∆ABC is a right-angled triangle with sides a,b and c and smallest angle θ. If 1/a, 1/b and 1/c are also the sides of the right-angle triangle then find sin θ.

a. √((3-√5)/2)b. (3-√5)/2c. √((3+√5)/2)d. (3+√5)/2Solution: Answer: aLet a>b>csin θ = c/a1/a <... View Article

Two circles pass through (-1, 4) and their centres lie on x²+y²+2x+4y = 4. If r₁ and r₂ are maximum and minimum radii and r₁/r₂ = a+b√2, then the value of a+b is

Answer: 3 Solution: Given circle (x+1)2+(y+2)2 = 32 Any point on the circle is (3 cos θ - 1,3 sin θ - 2) Radius of the circles which passes... View Article

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