Previous year MCQs

General science UPPSC 2007 GS-I
Question

The cause of sweetness in the milk is because of the presence of:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Lactose

Detailed Solution:

The correct answer is “Lactose”.
Lactose is a type of sugar naturally found in milk and dairy products, and it contributes to the sweet taste of milk.

Similar Questions:

Consider the following statements:

Assertion (A): If Ice collects on the freeze the cooling in the refrigerator is affected adversely.
Reason (R) : Ice is a poor conductor.

Select the correct answer using the codes given below:
Codes:
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  3. C) (A) is true, but (R) is false.
  4. D) (A) is false, but (R) is true.
Kimberly is famous
  1. A) For gold mining
  2. B) For diamond mining
  3. C) For Steel industry
  4. D) For the Automobile industry
Benefits of which one of the following river valley projects is received by more than one state.
  1. A) Chambal valley project
  2. B) Mayurakshi Project
  3. C) Shashwati project
  4. D) Hirakund project
An earth satellite is kept moving in its orbit. It is due to the phenomenon of centripetal force provided by
  1. A) The rocket engine propelling the satellite
  2. B) The gravitational attraction of the Earth on the satellite
  3. C) The gravitational attraction of the Sun on the satellite
  4. D) The gravitational attraction of satellite on Earth
Which of the following is used in Genetic-Engineering?
  1. A) Plastid
  2. B) Plasmid
  3. C) Mitochondria
  4. D) Ribosome
Smog is essentially caused by the atmospheric presence of:
  1. A) Oxygen and ozone
  2. B) Ozone and nitrogen
  3. C) Oxygen and nitrogen
  4. D) Oxide of nitrogen and sulphur
Which of the following is concerned with soil?
  1. A) Edaphic
  2. B) Climatic
  3. C) Biotic
  4. D) Topography
The alkaloid caffeine is present in
  1. A) Tea only
  2. B) Coffee only
  3. C) Tea and coffee both
  4. D) Lemon water
Which one of the following is not achieved by transgenics?
  1. A) Production of biodegradable plastics
  2. B) Production of edible vaccines
  3. C) Production of cloned animals
  4. D) Production of transgenic crops
Expansion during heating
  1. A) Occurs only in solid
  2. B) Increases the weight of the material
  3. C) Decreases the density of the material
  4. D) Occurs at the same rate for all liquids and solids
Roger fodder defeated _ and won Australian open Singles men in 2007?
  1. A) Andi Roddick
  2. B) Fernando Gonzalez
  3. C) Rafael Nadal
  4. D) Tommy Haas
Which of the following gets deficient in the human body due to Dengue fever?
  1. A) Platelets
  2. B) Haemoglobin
  3. C) Sugar
  4. D) Water