General Science - Biology MCQs

91. Consider the following cell organelles:
1. Nucleus
2. Mitochondria
3. Chloroplast
4. Endoplasmic Reticulum
Which among the above have DNA?

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

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92. Consider the following statements about Krebs cycle:

This is also known as reductive pentose phosphate cycle
While the Krebs cycle occurs in mitochondrion in eukaryotic cell, it occurs in cytosol in prokaryotic cell

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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93. T lymphocytes or T cells:

are a subtype of white blood cell
develop from stem cells in the bone marrow

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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94. The height (h) to which a liquid will rise in a capillary tube:

increases with increase in surface tension of liquid
decreases with increase in radius of the tube

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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95. Consider the following statements about Japanese Encephalitis (JE):

It is a viral infection caused by RNA viruses affecting liver.
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

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96. What is common to the techniques (i) in vitro fertilisation, (ii) Cryo preservation and (iii) tissue culture?

[A] All are in situ conservation methods
[B] All are ex situ conservation methods
[C] All require ultra modern equipment and large space
[D] All are methods of conservation of extinct organisms

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97. Which of the following is the lowest taxonomic division shared by both man and frog?

[A] Order
[B] Class
[C] Phylum
[D] Family

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98. Which of the following taxonomic level is same for man, monkey and tiger?

[A] Genus
[B] Family
[C] Order
[D] Class

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99. Which of the following is not a correct fact with respect to classification of organisms?

[A] A natural system of classification reflects the evolutionary history of organisms
[B] Latin scientific names identify specific organisms whose common names may vary from country to
[C] The specific epithet sometimes tells us something descriptive about the organism
[D] All of above are correct statements

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100. Consider the following statements:

Irrawaddy River is the largest river of Myanmar
Irrawaddy River is a part of the Chao Phraya River System
Mandalay is a famous city and last royal capital of Burma, located on the banks of the Irrawaddy River

Which among the above statements is/ are correct?

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

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