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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:   D) 1, 2 and 3



Explanation:
Subject: General Science
Q:

Bulb is a modification of which part of a plant?

A) The root B) The stem
C) The radicle D) The fruit
 
Answer & Explanation Answer: B) The stem

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Q:

In terms of size, Venus ranks no. ___ in our Solar System.

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: B) 6

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Q:

ABM stands for ______.

A) Anti Belligerent Mine B) Anti Base Machine
C) Anti Body Mechanics D) Anti Ballistic Missile
 
Answer & Explanation Answer: D) Anti Ballistic Missile

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Q:

In terms of size, Earth ranks no. ___ in our Solar System.

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: A) 5

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Q:

The Ozone layer is present in which atmospheric layer?

A) Lithosphere B) Ionosphere
C) Stratosphere D) Biosphere
 
Answer & Explanation Answer: C) Stratosphere

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Q:

Name the scientist who proposed the cell theory

A) Schleiden and Schwann B) Lamarck
C) Treviranus D) Whittaker and Stanley
 
Answer & Explanation Answer: A) Schleiden and Schwann

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Q:

______ is the time taken by the earth to return to a given point in its orbit with reference to a fixed star.

A) Lunar year B) Sidereal year
C) Solar year D) Tropical year
 
Answer & Explanation Answer: B) Sidereal year

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Q:

Name the international treaty designed to protect the ozone layer from CFCs.

A) Sigma protocol B) Montreal protocol
C) Ozone protocol D) Green protocol
 
Answer & Explanation Answer: B) Montreal protocol

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