Quiz 26-January-2024

5/5 - (2 votes)

Labmonk quiz, NET Life Science,

#1. Inner planets of the solar system are rocky, whereas outer planets are gaseous. One of the reasons for this is that

solar heat drove away the gases to the outer region of the solar system.

gravitational pull of the sun pulled all rocky material to the inner solar system.

comets delivered the gaseous materials to the outer planets.

outer planets are larger than the inner planets.

#2. Restriction endonuclease cleaves DNA molecules at specific ‘recognition sites’. One such enzyme has four recognition sites on a circular DNA molecule. After complete digestion how many fragments would be produced upon reaction with the enzyme?

#3. On exposure to desiccation, which of the following bacteria are least likely to experience rapid water loss?

Cocci in clusters

Rods in chain

Isolated rods

Cocci in chain

#4. A bell is rung before giving food to a dog. After doing this continuously for 10 days, which of the following is most likely to happen?

The dog will not eat food without hearing the bell.

The dog learns to ignore the bell.

The dog ignores food and runs towards the bell.

The dog salivates on hearing the bell.

#5. During a total solar eclipse occurring at noon, it becomes dark enough for a few minutes for stars to become visible. The stars that are seen are those which will be seen from the same location

on the following night only

on the night one month later

on the night six months later

on the night three months later

#6. An overweight person runs 4 km everyday as an exercise. After losing 20% of his body weight, if he has to run the same distance in the same time, the energy expenditure would be

40% less

the same as earlier

20% more

20% less

#7. A solid cube of side L floats on water with 20% of its volume under water. Cubes identical to it are piled one-by-one on it. Assume that the cubes do not slip or topple, and the contact between their surfaces is perfect. How many cubes are required to submerge one cube completely?

Infinite

#8. In which form of DNA, the number of base pairs per helical turn is 10.5?

#9. A cupboard is filled with a large number of balls of 6 different colours. You already have one ball of each colour. If you are blind-folded, how many balls do you need to draw to be sure of having 3 colour matched pairs of balls?

#10. When a magnet is made to fall free in air, it falls with an acceleration of 9.8ms^–2. But when it is made to fall through a long aluminium cylinder, its acceleration decreases, because

a part of the gravitational potential energy is lost in heating the magnet.

the said experiment was done in the magnetic northern hemisphere.

the cylinder shields the gravitational force.

a part of the gravitational potential energy is lost in heating the cylinder.

Finish

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Quiz 26-January-2024

#1. Inner planets of the solar system are rocky, whereas outer planets are gaseous. One of the reasons for this is that

#2. Restriction endonuclease cleaves DNA molecules at specific ‘recognition sites’. One such enzyme has four recognition sites on a circular DNA molecule. After complete digestion how many fragments would be produced upon reaction with the enzyme?

#3. On exposure to desiccation, which of the following bacteria are least likely to experience rapid water loss?

#4. A bell is rung before giving food to a dog. After doing this continuously for 10 days, which of the following is most likely to happen?

#5. During a total solar eclipse occurring at noon, it becomes dark enough for a few minutes for stars to become visible. The stars that are seen are those which will be seen from the same location

#6. An overweight person runs 4 km everyday as an exercise. After losing 20% of his body weight, if he has to run the same distance in the same time, the energy expenditure would be

#7. A solid cube of side L floats on water with 20% of its volume under water. Cubes identical to it are piled one-by-one on it. Assume that the cubes do not slip or topple, and the contact between their surfaces is perfect. How many cubes are required to submerge one cube completely?

#8. In which form of DNA, the number of base pairs per helical turn is 10.5?

#9. A cupboard is filled with a large number of balls of 6 different colours. You already have one ball of each colour. If you are blind-folded, how many balls do you need to draw to be sure of having 3 colour matched pairs of balls?

#10. When a magnet is made to fall free in air, it falls with an acceleration of 9.8ms^–2. But when it is made to fall through a long aluminium cylinder, its acceleration decreases, because

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Quiz 26-January-2024

#1. Inner planets of the solar system are rocky, whereas outer planets are gaseous. One of the reasons for this is that

#2. Restriction endonuclease cleaves DNA molecules at specific ‘recognition sites’. One such enzyme has four recognition sites on a circular DNA molecule. After complete digestion how many fragments would be produced upon reaction with the enzyme?

#3. On exposure to desiccation, which of the following bacteria are least likely to experience rapid water loss?

#4. A bell is rung before giving food to a dog. After doing this continuously for 10 days, which of the following is most likely to happen?

#5. During a total solar eclipse occurring at noon, it becomes dark enough for a few minutes for stars to become visible. The stars that are seen are those which will be seen from the same location

#6. An overweight person runs 4 km everyday as an exercise. After losing 20% of his body weight, if he has to run the same distance in the same time, the energy expenditure would be

#7. A solid cube of side L floats on water with 20% of its volume under water. Cubes identical to it are piled one-by-one on it. Assume that the cubes do not slip or topple, and the contact between their surfaces is perfect. How many cubes are required to submerge one cube completely?

#8. In which form of DNA, the number of base pairs per helical turn is 10.5?

#9. A cupboard is filled with a large number of balls of 6 different colours. You already have one ball of each colour. If you are blind-folded, how many balls do you need to draw to be sure of having 3 colour matched pairs of balls?

#10. When a magnet is made to fall free in air, it falls with an acceleration of 9.8ms–2. But when it is made to fall through a long aluminium cylinder, its acceleration decreases, because

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#10. When a magnet is made to fall free in air, it falls with an acceleration of 9.8ms^–2. But when it is made to fall through a long aluminium cylinder, its acceleration decreases, because