Science GK Quiz for Competitive Exams
What is Baking soda?
(A) sodium bicarbonate
(B) sodium sulphate
(C) sodium hydrogen carbonate
(D) sodium hydroxide
Correct Answer : A
Explanation :
The chemical name of baking soda is sodium hydrogen carbonate or sodium bicarbonate (NaHCO3).
Limestone, chalk and marble are different forms of ______.
(A) Calcium phosphate
(B) Calcium hydroxide
(C) Calcium oxide
(D) Calcium carbonate
Correct Answer : D
Explanation :
Limestone , chalk and marble are different forms of calcium carbonate.
Roquefortine C is found in:
(A) Meat
(B) Chicken
(C) Egg
(D) Cheese
Correct Answer : A
Explanation :
Roquefortine C has been found mainly in blue cheese and blue cheese products. In a survey of 16 blue cheese samples from Denmark, Finland, Germany, France, Britain, Italy and Canada, all samples contained this mycotoxin at levels up to 6800 ng g−1 (average 950 ng kg−1).
The body of the ______ is circular in cross-section, hence, the name roundworms. They may be free-living, aquatic and terrestrial or parasitic in plants and animals.
(A) Platyhelminthes
(B) Ctenophores
(C) Mollusca
(D) Aschelminthes
Correct Answer : D
Explanation :
The body of the aschelminthes is circular in cross-section, hence, the name roundworms. They may be free living, aquatic and terrestrial or parasitic in plants and animals. Roundworms have organ-system level of body organisation. They are bilaterally symmetrical, triploblastic and pseudocoelomate animals.
Identify the animal that is NOT a non-chordate.
(A) Repltiles
(B) Arthropods
(C) Porifera
(D) Arachnids
Correct Answer : A
Explanation :
The correct answer is Reptiles. Non-chordates are animals without a notochord or backbone whereas chordates have the same.
Consider statements (A) and (B) about conventional energy and choose the correct answer.
Statement (A): Conventional sources of energy are those whose occurrence is in
Statement (B): limited local area and which have been in everyday use for a long Atidacti time. Only fossil fuels are sources of conventional energy.
(A) Both (A) and (B) are true (2) Both (A) and (B) are false
(B) Both (A) and (B) are false
(C) (A) is true but (B) is false
(D) (A) is false, (B) is true
Correct Answer : B
Explanation :
Conventional sources of energy are those which have been in common use for a long time. Firewood and fossil fuels are the two main conventional energy sources.
Bodies that do not have their own heat and light, but are lit by the light of the stars are known as
(A) planets
(B) celestial bodies
(C) stars
(D) constellations
Correct Answer : B
Explanation :
Some celestial bodies do not have their heat and light. They are lit by the light of the stars. Such bodies are called planets.
Which one animal group comes under the category of endangered species?
(A) Great Indian Sarang, Musk Deer, Red Panda and Asiatic Wild Ass
(B) Kashmiri antelope, chital, nilgai and great Indian sarong
(C) Snow Leopard, Anoop Deer, Rhesus Monkey and Crane
(D) Leopard Macaque, Nilgai and Hanuman Langar
Correct Answer : A
Explanation :
The species that are in danger of getting extinct are called endangered species. In India, the Lion Tailed Macaque, the forest owlet, the Bengal tiger, the Asiatic Lion, the Ganges river dolphin, Asiatic elephant and the Sangai are some of the endangered species.
What is the application of somatic cell nuclear transfer technology?
(A) Production of bio-oestrus
(B) Manufacture of bio-degradable plastics
(C) reproductive cloning of animals
(D) production of disease free organisms
Correct Answer : C
Explanation :
The main areas of application of SCNT are: Reproductive cloning, therapeutic cloning and basic research. A great application potential of SCNT based cloning is the production of genetically modified (transgenic) animals.
What does 'transcriptome' refer to?
(A) a class of enzymes used in genome editing
(B) Complete chain of mRNA molecules expressed by an organism
(C) Describe the mechanism of gene expression
(D) a mechanism of genetic mutations occurring in cells
Correct Answer : B
Explanation :
A transcriptome is the full range of messenger RNA, or mRNA, molecules expressed by an organism. The term "transcriptome" can also be used to describe the array of mRNA transcripts produced in a particular cell or tissue type.
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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