Nucleic Acids - Mock Test 45

Question 441

De novo synthesis of purine nucleotide occurs in?

A) Mitochondria B) Cytosol C) Microsmes D) Ribosomes

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Question 442

Nucleotides required for the synthesis of nucleic acids can be obtained from?

A) Dietary nucleic acids and nucleotides B) De novo synthesis C) Salvage of pre-existing bases and nucleosides D) De novo synthesis and salvage

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Question 443

Ceramide is present in all of the following except?

A) Plasmalogens B) Cerebrosides C) Sulphatides D) Sphingomyelin

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Question 444

Ceramidase is deficient in?

A) Fabry’s disease B) Farber’s disease C) Krabbe’s disease D) Tay-Sachs disease

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Question 445

Transfer RNA transfers?

A) Information from DNA to ribosomes B) Information from mRNA to cytosol C) Amino acids from cytosol to ribosomes D) Proteins from ribosomes to cytosol

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Question 446

Ten base pairs are present in one turn of the helix in?

A) A-DNA B) B-DNA C) C-DNA D) Z-DNA

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Question 447

Ribothymidine is present in?

A) DNA B) tRNA C) rRNA D) hnRNA

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Question 448

Mitochondrial DNA is present in?

A) Bacteria B) Viruses C) Eukaryotes D) All of these

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Question 449

Extranuclear DNA is present in?

A) Ribosomes B) Endoplasmic reticulum C) Lysosomes D) Mitochondria

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Question 450

The complementary base of adenine in RNA is?

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

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