Biology GK Questions - Biology General Knowledge questions for Competitive Exams
Which one of the following components is not essential for the certification of organic farming?
(A) Fertigation with urea
(B) Use of herbicide
(C) Use of insecticide
(D) Seed treatment with chemicals
Correct Answer : A
Extra-chromosomal material is present in micro-organisms?
(A) Viroid
(B) Ribozyme
(C) Plasmid
(D) None of these
Correct Answer : C
A Taxon with a maximum number of homologous genes is found in?
(A) in order
(B) in species
(C) in descent
(D) in square
Correct Answer : B
Explanation :
Scientists have discovered that the animal with the most genes--about 31,000--is the near-microscopic freshwater crustacean Daphnia pulex, or water flea. By comparison, humans have about 23,000 genes.
N.E. In which field did Borlaug get the Nobel Prize (1970)?
(A) Agriculture
(B) Economics
(C) Plant Pathology
(D) Peace
Correct Answer : D
Explanation :
Norman Ernest Borlaug (born March 25, 1914, near Saude, Iowa, U.S.—died September 12, 2009, Dallas, Texas) American agricultural scientist, plant pathologist, and winner of the Nobel Prize for Peace in 1970.
Operation Flood II is related to the?
(A) Flood control in India
(B) Food grain production
(C) Milk production
(D) Fish production
Correct Answer : C
Explanation :
Operation Flood is the program behind "the white revolution." It created a national milk grid linking producers throughout India with consumers in over 700 towns and cities, reducing seasonal and regional price variations while ensuring that the producer gets a major share of the price consumers pay, by cutting out ...
Have unlimited resources?
(A) Plants
(B) Soil
(C) Water
(D) Climate with solar energy
Correct Answer : D
Explanation :
Resources like air, light and wind are available in unlimited quantities. These resources are quickly renewed or quickly replenished. Resources which are unlimited and are not affected by human activities are called renewable resources.
Write the correct meaning of climate change.
(A) Increase in the temperature of the atmosphere
(B) Increase in turbidity
(C) Fall in temperature
(D) Increase in rainfall
Correct Answer : A
Explanation :
Climate change is a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates. These changes have a broad range of observed effects that are synonymous with the term.
The upper part of the respiratory tract is provided with small hair-like structures called ______.
(A) bronchi
(B) cilia
(C) villi
(D) alveoli
Correct Answer : B
Explanation :
Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.
Which one of the following flying creatures does not come under the category of birds?
(A) Bat
(B) Crow
(C) Eagle
(D) Parrot
Correct Answer : A
Explanation :
Thus, a bat is not a bird but can fly.
How many bones are there in shark fish?
(A) 100
(B) 0
(C) 200
(D) 300
Correct Answer : B
Explanation :
The body of the shark does not contain any bones. The whole body of the shark is made up of cartilages. As they do not have any of the characteristics that describe a mammal, sharks are not mammals. They are not even warm-blooded animals.
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Rajesh Bhatia
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