General Science - Biology MCQs

61. Consider the following diseases:
1. Wilson’s disease
2. Turner’s syndrome
3. Daltonism Which among the above is / are genetic diseases?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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62. With reference to Algae, which among the following statements is / are correct?

  1. Most algae have a true root but don’t have true stem or true leaves
  2. Algae are primary producers in the aquatic ecosystems
  3. Most edible algae are marine algae as most freshwater algae are toxic

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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63. What do you understand by Milankovitch cycles?

[A] Shifts in the temperature of surface water in the middle latitudes of the Pacific Ocean
[B] Changes in Earth’s rotation and orbit around the sun that may trigger climate variation
[C] Phenomena that describe the timing of the northern lights in the thermosphere
[D] Transpiration, evaporation, and precipitation of Earth’s water

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64. Identify a plant on the basis of the following information:

  1. This poisonous plant is found in almost all parts of India and flourishes in winter
  2. Its seeds look very much similar to the mustard seeds but they render inedible oil
  3. It is a very good indicator of recently disturbed or flooded soil

Select the correct option from the codes given below:

[A] Datura
[B] Lantana
[C] Argemone mexicana
[D] Parthenium

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65. The lung fluke disease (paragonimiasis) is sometimes confused with the tuberculosis. The lung fluke disease is__:

  1. caused by a round worm
  2. is found commonly in countries which use raw seafood
  3. is prevalent in North East India

Which among the above is / are correct statements?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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66. In recent times, the ‘convalescent plasma therapy’ is getting popular as a standard practice in many countries. Consider the following statements with this reference:

  1. It has often been tried, especially for viral infections
  2. It envisages use of plasma from a healthy individual to infected individual
  3. It is a type of passive immune therapy

Which among the above is / are correct statements?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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67. Consider the following matches of space probes and their target study area:
1. Rosetta â?? Comet
2. New Horizons â?? Pluto and Kuiper belt
3. Dawn â?? Asteroid Belt
Which of the above is / are correct?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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68. Various applications of the DNA sequencing include:
1. Identifying a particular individual
2. Diagnosis of genetic and non-genetic diseases
3. Improve quality of livestock and crops
4. Confirm and establish species identity
Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 1, 2 & 3
[C] Only 1, 3 & 4
[D] 1, 2, 3 & 4

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69. From the point of view of evolution of living organisms, which of the following set of animals is a correct sequence of evolution?

[A] Whale, Kangaroo, Echidna
[B] Echidna, Whale, Kangaroo
[C] Kangaroo, Whale, Echidna
[D] Echidna, Kangaroo, Whale

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70. In human body, the digestive enzymes are secreted by __:
1. Mouth cavity
2. Stomach
3. Gall bladder
4. Small intestine
Select the correct option from the codes given below:

[A] Only 1, 2 & 3
[B] Only 1, 2 & 4
[C] Only 1 & 2
[D] 1, 2, 3 & 4

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