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Science MCQ Questions with answers

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Learn Science MCQs [Page 1 of Department 11]

1) Great Zebra, Lesser Zebra and Spotted Zebra are species of:

(A) Butterfly
(B) Fish
(C) Monkey
(D) Dog
Correct Answer - Option (A)

Explanation:
The Great Zebra, Lesser Zebra and Spotted Zebra are the swallowtail butterfly found in the Southeast Asia, which are relatively common and not threatened species.

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2) Consider the following statements about Golden Rice:
1. It is genetically modified orange-yellow-coloured rice
2. It produces beta-carotene which acts as a supplement for vitamin C
Which of the above statements is/are correct?

(A) 1 Only
(B) 2 Only
(C) Both 1 & 2
(D) Neither 1 nor 2
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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3) Leucoplasts:
1. are colourless plastids
2. have double membrane and contain DNA
 Which of the above statements is/are correct?

(A) 1 Only
(B) 2 Only
(C) Both 1 & 2
(D) Neither 1 nor 2
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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4) Which of the following are not parts of hindbrain in humans?
1. Spinal cord
2. Cerebellum
3. Hypothalamus
4. Basal Ganglia
  Select the correct option from codes given below:

(A) 1, 3 & 4 Only
(B) 1, 2 & 3 Only
(C) 1, 2 & 4 Only
(D) 1, 2, 3 & 4
Correct Answer - Option (A)

Explanation:
Spinal cord is approximately 45 cm long in an adult. Receives sensory messages and sends them to the brain. Hindbrain is the oldest part of the brain located between the spinal cord and the brain hemispheres. It consists of the medulla, pons and cerebellum. Hypothalamus and Basal Ganglia are associated to forebrain.

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5) Consider the following:
1. Spinal cord
2. Neocortex
3. Nephron
 Which of the above are parts of central nervous system?

(A) 1 & 2 Only
(B) 1 & 3 Only
(C) 2 & 3 Only
(D) 1, 2 & 3
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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6) Consider the following differences between Monocots and Dicots:
1. While secondary growth is absent in monocots, it is present in dicots
2. While monocots have fibrous root system, dicots have taproot system
 Which of the above statements is/are correct?

(A) 1 Only
(B) 2 Only
(C) Both 1 & 2
(D) Neither 1 nor 2
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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7) Which of the following can be used for DNA Fingerprinting technology?
1. Teeth
2. Saliva
3. Red blood cells (RBCs)
4. White blood cells (WBCs)
Select the correct option from codes given below:

(A) 1, 3 & 4 Only
(B) 2, 3 & 4 Only
(C) 1, 2 & 3 Only
(D) 1, 2 & 4 Only
Correct Answer - Option (D)

Explanation:
Blood, bones, hair with root, saliva, semen, teeth, and tissue can be used to study the DNA. The red blood cells (RBCs) contain haemoglobin and carry oxygen throughout the body, but it is true that they lack the DNA-containing nuclei found in all other cells. Unlike RBCs, white blood cells do contain nuclei and the informative molecule inside, DNA.

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8) Consider the following statements about Japanese Encephalitis (JE):
1. It is a viral infection caused by RNA viruses affecting liver.
2. The disease can affect people of all ages but most commonly affects the adults in the age group 30 to 50 years
Which of the above statements is/are correct?

(A) 1 Only
(B) 2 Only
(C) Both 1 & 2
(D) Neither 1 nor 2
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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9) Which of the following is /are involved in Gene Doping in sports?
1. Stem cells
2. Genetically modified food as diet intake
3. Drugs such as Mysostatin
Select the correct option from the codes given below:

(A) Only 1
(B) Only 1 & 2
(C) Only 1 & 3
(D) Only 3
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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10) Which of the following is most inclusive category of classification among others?

(A) Order
(B) Class
(C) Phylum
(D) Family
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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