Biochemistry - Mock Test 26

Question 251

Adenine is

A) purine B) pyrimidine C) nucleoside D) nucleotide

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Question 252

The basic unit of nucleic acid is

A) pentose sugar B) nucleoid C) nucleoside D) nucleotide

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Question 253

A nucleotide is formed of

A) purine, pyrimidine and phosphate B) purine, sugar and phosphate C) nitrogen base, sugar and phosphate D) pyrimidine, sugar and phosphate

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Question 254

The base pairs of DNA are correctly shown as

A) A = G and C = A B) A = C and A = G C) A = T and C = G D) A = G and C = T

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Question 255

The similarity between DNA and RNA is that both are

A) double stranded B) having similar sugars C) polymers of nucleotides D) having similar pyrimidines

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Question 256

Nucleic acids were discovered by

A) Watson and Crick B) Khorana C) Wilkins D) Miescher

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Question 257

In DNA guanine pairs with

A) cytosine B) thymine C) uracil D) adenine

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Question 258

Which of the following is a purine

A) Prokaryotes B) Guanine C) Thymine D) Uracil

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Question 259

Starch and cellulose are the compounds made up of many units of

A) simple sugar B) fatty acid C) glycerol D) amino acid

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Question 260

The most important property of an enzyme is its

A) composition B) thermal denaturation C) specificity D) solubility

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