Nucleic Acids - Mock Test 59

Question 581

A synthetic nucleotide analogue, 4-hydroxypyrazolopyrimidine is used in the treatment of?

A) Acute nephritis B) Gout C) Cystic fibrosis of lung D) Multiple myeloma

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Question 582

An increased melting temperature of duplex DNA results from a high content of?

A) Adenine + Guanine B) Thymine + Cytosine C) Cytosine + Guanine D) Cytosine + Adenine

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Question 583

IN a DNA molecule, the guanosine content is 40%, the adenine content will be?

A) 10% B) 20% C) 30% D) 40%

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Question 584

In a DNA molecule the thymine concentration is 30%, the guanosine concentration will be?

A) 10% B) 20% C) 30% D) 40%

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Question 585

The distance spanned by one turn of Bform DNA is?

A) 1.0 nm B) 2.0 nm C) 3.0 nm D) 3.4 nm

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Question 586

The distance spanned by one turn of Bform DNA is?

A) 1.0 nm B) 2.0 nm C) 3.0 nm D) 3.4 nm

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Question 587

The number of base pair in a single turn of B-form DNA about the axis of the molecule is?

A) 4 B) 8 C) 10 D) 12

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Question 588

The width (helical diameter) of the double helix in B-form DNA in nm is?

A) 1 B) 2 C) 3 D) 4

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Question 589

The fact that DNA bears the genetic information of an organism implies that?

A) Base composition should be identical from species to species B) DNA base composition should charge with age C) DNA from different tissues in the same organism should usually have the same base composition D) DNA base composition is altered with nutritional state of an organism

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Question 590

DNA rich in G-C pairs have?

A) 1 Hydrogen bond B) 2 Hydrogen bonds C) 3 Hydrogen bonds D) 4 Hydrogen bonds

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