Q:

Which enzyme has been used by scientists of Massachusetts Institute of Technology to induce plants to give off dim light?

A) Carotenogen	B) Luciferase
C) Reductase	D) Peroxidase

Answer & Explanation Answer: B) Luciferase

Explanation:

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Filed Under: Biology
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Q:

Improve the bracketed part of the sentence.
The communities of ants are sometimes very large, (numbered) even upto 500 individuals: and it is a lesson to us that no one has ever yet seen quarrel between
any two ants belonging to the same community.

A) number	B) numerous
C) numbering	D) No improvement

Answer & Explanation Answer: C) numbering

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Filed Under: English

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Q:

Which of the following is a CORRECT statement?

A) Only compounds are pure substance	B) Compounds are impure substance
C) Only elements are pure substance	D) Both compounds and elements are pure substance

Answer & Explanation Answer: D) Both compounds and elements are pure substance

Explanation:

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Filed Under: Chemistry
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Q:

The gas evolved when sodium carbonate reacts with hydrochloric acid is

A) Hydrogen	B) Chlorine
C) Hydrogen Chloride	D) Carbon dioxide

Answer & Explanation Answer: D) Carbon dioxide

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Q:

What is a bank rate?

A) Rate at which Central bank of a country advances loans to other banks in the country	B) Rate at which banks advance loans to the customers
C) Rate at which banks lend among themselves	D) Rate at which banks lend to money lenders

Answer & Explanation Answer: A) Rate at which Central bank of a country advances loans to other banks in the country

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Filed Under: Indian Economy
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Q:

The number of days' sales uncollected is calculated by

A) Dividing accounts receivable by net sales and multiplying by 365.	B) Dividing net sales by accounts receivable and multiplying by 365.
C) Dividing accounts receivable by net sales.	D) Dividing net sales by accounts receivable.

Answer & Explanation Answer: A) Dividing accounts receivable by net sales and multiplying by 365.

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Q:

In a cut motion, when the amount of demand is reduced by Rs 100/ , it is known as

A) Disapproval of policy cut	B) Economy cut
C) Vote on Account	D) Token cut

Answer & Explanation Answer: D) Token cut

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Q:

Which one of the following statements is not correct?

A) When total utility is maximum, marginal utility is zero	B) When total utility is decreasing, marginal utility is negative
C) When total utility is increasing, marginal utility is positive	D) When total utility is maximum,marginal and average utility are equal to each other.

Answer & Explanation Answer: D) When total utility is maximum,marginal and average utility are equal to each other.

Explanation:

Total utility -It is total psychological satisfaction which a consumer derives from the consumption of a commodity is known as total utility

Marginal utility -It is anaddition made in total utility by consuming and additional unit of a commodity is known as marginal utility.

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