Questions

Q:

In a plant cell, DNA may be found in

A) only in the nucleus and mitochondria. B) only in the nucleus and chloroplasts
C) in the nucleus, mitochondria, and chloroplasts. D) only in the nucleus.
 
Answer & Explanation Answer: C) in the nucleus, mitochondria, and chloroplasts.

Explanation:

All of the genetic information in a cell was initially thought to be confined to the DNA in the chromosomes of the cell nucleus.

It is now known that small circular chromosomes, called extranuclear, or cytoplasmic, DNA, are located in two types of organelles found in the cytoplasm of the cell.

These organelles are the mitochondria in animal and plant cells and the chloroplasts in plant cells.

Chloroplast DNA (cpDNA) contains genes that are involved with aspects of photosynthesis and with components of the special protein-synthesizing apparatus that is active within the organelle.

Mitochondrial DNA (mtDNA) contains some of the genes that participate in the conversion of the energy of chemical bonds into the energy currency of the cell—a chemical called adenosine triphosphate (ATP)—as well as genes for mitochondrial protein synthesis.

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Filed Under: General Science
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Q:

M sham Lal has done commendable worrk in which of the following fields

A) Social Service B) Trade Unionism
C) Journalism D) Politics
 
Answer & Explanation Answer: C) Journalism

Explanation:
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Filed Under: Famous Personalities

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Q:

The five permanent members of UN security council are

A) Japan, West Germany, USSR, UK and USA B) Germany, China, USSR, UK and USA
C) Canada, China, France, USSR and USA D) China, France, USSR, UK and USA
 
Answer & Explanation Answer: D) China, France, USSR, UK and USA

Explanation:
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Filed Under: World Organisations

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Q:

Market survey means...........

A) Market Research B) Market Planning
C) Marketing Strategies D) Market Monitoring
 
Answer & Explanation Answer: A) Market Research

Explanation:
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Filed Under: Marketing and Sales

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Q:

How do you detect if two 8-bit signals are same?

Answer

Pass input to XOR and give their outputs to OR gate, if your output is 0 both 8-bit signals are same.


OR


Pass input to XNOR and give their outputs to AND gate, if your output is 1 both 8-bit signals are same. 

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Subject: Hardware

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Q:

Which of the following Schemes was launched to promote basic education in India and attract children in School going age to attend the classes?

A) Pulse Polio Abhiyan B) Operation Flood
C) Mid-Day Meal Schema D) Operation Black Board
 
Answer & Explanation Answer: C) Mid-Day Meal Schema

Explanation:
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Filed Under: Indian Economy

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Q:

Which among the following minerals is also known as Horn Silver?

A) Silver Chroride B) Zinc Phosphate
C) Silver Iodide D) Silver Sulphide
 
Answer & Explanation Answer: A) Silver Chroride

Explanation:

Silver chloride is a chemical compound with the chemical formula AgCl is also called as Horn Silver. It is also called as cerargyrite. It is a gray, very heavy halide mineral and an ore of silver.

Which_among_the_following_minerals_is_also_known_as_Horn_Silver1560942904.jpg image

 

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Filed Under: Chemistry
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Q:

Best suited for areas subject to friction, the epithelial tissue is called as

A) transitional B) simple columnar
C) straited squamous D) areolar
 
Answer & Explanation Answer: C) straited squamous

Explanation:

The number of cell layers and cell types together give rise to 6 different types of epithelial tissue.


1. Simple squamous epithelia

2. Simple cuboidal epithelia

3. Simple columnar epithelia

4. Stratified squamous epithelia

5. Stratified cuboidal epithelia

6. Stratified columnar epithelia

 

Stratified squamous epithelia is best suited for areas subject to friction.

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Filed Under: Biology
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