Questions

Q:

Which best describes genetic mutations?

A) Genetic mutations that cause diseases are always passed on to offspring. B) Some inherited genetic mutations can be good for the offspring.
C) Different genetic mutations cause few forms of cancer. D) Somatic mutations can be inherited from parents or acquired during life.
 
Answer & Explanation Answer: B) Some inherited genetic mutations can be good for the offspring.

Explanation:

Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms. 

 

Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit.

 

Genetic mutations that cause diseases are not always passed on to offspring. 

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Q:

Which type of memory is not directly addressable by the CPU and requires special software called EMS ?

A) Expanded B) Base
C) Conventional D) None
 
Answer & Explanation Answer: A) Expanded

Explanation:
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Q:

Power Point presentation is a collection of

A) Outlines B) Slides and Handouts
C) Speaker’s notes D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Power Point presentation is a collection of Slides and Handouts, Outlines and Speaker’s notes.

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Q:

A 16th Century Indian Jurist has stated that 'land is the property of its owner, and kings have only the right to tax it'. His Name?

A) Yajnavalkya B) Nilakantha
C) Hemadri D) Vijnaneswara
 
Answer & Explanation Answer: B) Nilakantha

Explanation:
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Q:

DNA can be found in what Organelles?

A) Chloroplasts and Mitichondria B) Nucleus and Ribosomes
C) Ribosomes and Mitochondria D) Endoplasmic Reticulum and Nucleus
 
Answer & Explanation Answer: A) Chloroplasts and Mitichondria

Explanation:

DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

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Q:

Under which conditions are gases most soluble in water?

A) low pressure and low temperature B) low pressure and high temperature
C) high pressure and low temperature D) high pressure and high temperature
 
Answer & Explanation Answer: C) high pressure and low temperature

Explanation:

Henry's Law tells that the solubility of a gas is directly proportional to the partial pressure of the gas above the solvent. Hence under high pressure, more gas is dissolved.

Also that Henry's Law involves a constant which is temperature-dependent. Under high temperatures, less gas is dissolved whereas under low temperatures, more gas is dissolved.

 

For Example ::  

You can think of a can of soda. The contents are under pressure and if you shake the can before opening, the soda fizzes out all over as you open it. So the higher the pressure, the more gas or more CO2 can be dissolved in the drink.

Eliminate choices 1 and 2. Now focus on the temperature. Soda goes flat (loses carbonation or gas) as it warms up. Soda is usually served cold because more of the carbonation or CO2 stays in the drink when the soda is cold.

 

Hence, in high pressure and low temperature conditions gases are most soluble in water.

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Q:

A shared database should:

A) be accurate and available. B) provide for backup and recovery.
C) be secure. D) All of the above.
 
Answer & Explanation Answer: D) All of the above.

Explanation:
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Q:

' Mohs scale ' is used to indicate the

A) degree of brittleness of a substance B) degree of hardness of mineral
C) degree of viscosity of a liquid D) degree of elasticity of a material
 
Answer & Explanation Answer: B) degree of hardness of mineral

Explanation:
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