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Introduction to Nucleic Acids

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Questions and Answers

Which nitrogenous base is found only in DNA?

Cytosine

Uracil

Adenine (correct)

Guanine

What is the characteristic structure associated with purines?

Five-member ring

Six-member ring (correct)

Four-member ring

Seven-member ring

What is the composition of the sugar component in nucleic acids?

Four carbon sugar

Six carbon sugar

Eight carbon sugar

Five carbon sugar (correct)

Where is DNA located in the cell?

Nucleus Signup and view all the answers

What is the major store of genetic information in living organisms?

Deoxy ribonucleic acid (DNA) Signup and view all the answers

What are the three basic units that compose a nucleotide?

Nitrogen base, sugar, phosphate Signup and view all the answers

What role do lipids play in cells?

Serve as the major component of cell membranes Signup and view all the answers

How is DNA molecule characterized?

It is very long and consists of hundreds of thousands of genes Signup and view all the answers

What type of RNA carries the genetic code from the nucleus to the cytoplasm to act as a template for protein synthesis?

mRNA Signup and view all the answers

Which nitrogen base is found in RNA instead of Thymine?

Uracil Signup and view all the answers

What is the function of transfer RNA (tRNA)?

Picks up activated amino acids in the cytoplasm to form proteins Signup and view all the answers

What is the key function of ribosomal RNA (rRNA)?

Forms an integral and permanent part of the ribosome structure Signup and view all the answers