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 General Science Questions

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Q:

The theory which advocates that living beings can arise only from other living beings is termed

A) Bio-genesis B) Abiogenesis
C) Catastrophism D) Cosmozoic
 
Answer & Explanation Answer: A) Bio-genesis

Explanation:
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Q:

At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?

1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease-resistant animal breeds.
Which of the statements given above is/are correct?

A) 1 and 2 only B) 2 only
C) 1 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: D) 1, 2 and 3

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Q:

Garampani sanctuary is located at

A) Diphu, Assam B) Gangtok, Sikkim
C) Junagarh, Gujarat D) Kohima, Nagaland
 
Answer & Explanation Answer: A) Diphu, Assam

Explanation:

Famous for Hot water springs and homeland for Hoolock Gibbons and Golden Langurs, The Garampani Wildlife Sanctuary is situated in Karbi Anglong of Diphu area. One of the oldest Sanctuary containing Hot water spring and waterfalls and surrounded by Nambour Sanctuary having 51 rare species of Orchid. It has a total area of 6 sq. Km.

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Q:

Iodine test is used to detect

A) Carbohydrate B) Fat
C) Protein D) Cholesterol
 
Answer & Explanation Answer: A) Carbohydrate

Explanation:

The iodine test is used to test for the presence of starch i.e, Carbohydrate.

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Q:

If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because 

A) The soil of rain forest is deficient in nutrients B) Propagules of the trees in a rain forest have poor viability
C) The rain forest species are slow growing D) Exotic species invade the fertile soil of rain forest
 
Answer & Explanation Answer: A) The soil of rain forest is deficient in nutrients

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Q:

What happens when some charge is placed on a soap bubble?

A) Its radius decreases B) Its radius increases
C) The bubble Collapses D) The bubble expands
 
Answer & Explanation Answer: B) Its radius increases

Explanation:
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Q:

Genetic alteration probably refers to altering what

A) Genes found on ribosomes B) Genes found on chromosomes
C) Genes found on cytoplasm D) All of the above
 
Answer & Explanation Answer: B) Genes found on chromosomes

Explanation:

Genetic alteration probably refers to altering Genes found on chromosomes.

Genes_on_chromosomes1531904619.jpg image

 

Genetic alteration refers to altering DNA sequence. Gene alteration forms genetically modified products that modifies the gene sequence.

 

Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology.

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Q:

Lichens are the best indicator of

A) Air pollution B) Sound pollution
C) Noise pollution D) Water pollution
 
Answer & Explanation Answer: A) Air pollution

Explanation:

1. Lichens are plants that grow in exposed places such as rocks or tree bark.

 

2.  Lichens are widely used as environmental indicators or bio-indicators. They can be used as air pollution indicators, especially of the concentration of sulfur-di-oxide in the atmosphere.  

 

3. They need to be very good at absorbing water and nutrients to grow there.

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