Questions

Q:

What holds the sides of the DNA ladder together?

A) Polar covalent bonds B) Ionic bonds
C) Metallic bonds D) Covalent bonds
 
Answer & Explanation Answer: D) Covalent bonds

Explanation:

Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.

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Filed Under: Biology
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Q:

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :

A) 518 nm B) 1035 nm
C) 325 nm D) 743 nm
 
Answer & Explanation Answer: D) 743 nm

Explanation:

1λ=1λ1+1λ2

1355=1680+1λ2

1λ2=680-355680×355

λ2=743nm.

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Rearrange the parts of the sentence in correct order.


We must urgently


P-ethics that respects, and responds
Q-humanely to, the strangers in our cities
R-and consciously develop a new

A) RQP B) PQR
C) RPQ D) QRP
 
Answer & Explanation Answer: C) RPQ

Explanation:
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Filed Under: English
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Q:

Plants synthesis protein from

A) amino acids B) starch
C) fatty acids D) sugar
 
Answer & Explanation Answer: A) amino acids

Explanation:

We know that, proteins are polymers of amino acids. So, plants are also used to synthesise protein from amino acids. Hence, plants synthesis protein from amino acids in the presence of ATP by specific synthetases.

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Filed Under: General Science
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Q:

Improve the bracketed part of the sentence.

I wish I (knew what was) wrong with my daughter.

A) had known what is B) knew what is
C) had knew what was D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Who is credited for the construction of the Red Fort?

 

A) Sikandar Lodi B) Akbar
C) Jahangir D) Shah Jahan
 
Answer & Explanation Answer: D) Shah Jahan

Explanation:
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Filed Under: Indian History
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Q:

A function cannot be defined inside another function

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

A function cannot be defined inside the another function, but a function can be called inside a another function.

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Subject: Programming

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Q:

Mr.Meera Sahib Fathima Beevi is distinguished as the first lady

A) Judge of the High Court B) Governor of a State
C) Judge of the Supreme Court D) Gold medal winner in Sports
 
Answer & Explanation Answer: C) Judge of the Supreme Court

Explanation:
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Filed Under: Famous Personalities

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