Q:

Which one of the following is true of tRNAs?

A) tRNAs are double-stranded.	B) There are four types of tRNA.
C) Each tRNA binds a particular amino acid.	D) All of the above

Answer & Explanation Answer: C) Each tRNA binds a particular amino acid.

Explanation:

tRNA abbreviated as A transfer RNA is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical link between the mRNA and the amino acid sequence of proteins.

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Q:

What does the term Jim Crow refer to?

A) the civil rights movement of the mid-twentieth century	B) northern whites who sympathized with African Americans
C) African American politicians during Reconstruction	D) the system of racial segregation in the South after Reconstruction

Answer & Explanation Answer: D) the system of racial segregation in the South after Reconstruction

Explanation:

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Q:

Which airport becomes as International Airport recently in 2017 ?

A) Chennai	B) Kolkata
C) Vijayawada	D) Patna

Answer & Explanation Answer: C) Vijayawada

Explanation:

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Q:

The greenhouse effect is caused solely by human activity.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

True, the greenhouse effect is caused solely by human activities such as deforrestation, depletion of natural resources and emission of CO2 by using vehicles, refrigerators and AC's.

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Subject: General Science
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Q:

Genes are made of

A) Carbohydrates	B) Proteins
C) Fats	D) Nucleotides

Answer & Explanation Answer: D) Nucleotides

Explanation:

Genes : The DNA is the genetic material. The DNA is made of several nucleotides. A nucleotide means, one nitrogenous base one sugar molecule and a phosphate molecule. These nucleotides occur in sequences and several nucleotides form one Gene ( a functional mgene is called a cistron)

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Q:

What is attenuation?

Answer

The degeneration of a signal over distance on a network cable is called attenuation.

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Subject: Networking
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Q:

Cytoplasm contains all the organelles.

A) TRUE

B) FALSE

Answer & Explanation Answer: B) FALSE

Explanation:

Cytoplasm does not contains all the organelles.

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Subject: Biology
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Q:

Ravi, Rohan and Rajesh alone can complete a work in 10, 12 and 15 days respectively. In how many days can the work be completed, if all three work together?

A) 4 days	B) 5 days
C) 3 days	D) 8 days

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