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Nucleic Acids and Nucleotides: DNA and RNA

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Nucleic Acids and Nucleotides: DNA and RNA

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Questions and Answers

What is the chemical basis of heredity?

Ribonucleic acid

DNA (correct)

Deoxyribonucleotides

RNA

Who discovered DNA in 1869?

Johann Friedrich Miescher (correct)

Avery

MacLeod

MacCary

What is the primary function of nucleic acids?

Synthesize proteins in the cell

Control every cellular function

Serve as repositories and transmitters of genetic information (correct)

Maintain the identity of different species

What are genes?

Fundamental units of genetic information Signup and view all the answers

What is the central dogma of molecular biology?

DNA controls the synthesis of RNA and proteins. Signup and view all the answers

Who first demonstrated that DNA contained genetic information?

Avery, Macleod, and MacCary Signup and view all the answers

What holds the DNA molecules together in a double helix structure?

Hydrogen bonds Signup and view all the answers

Which nitrogenous base is found in both DNA and RNA?

Cytosine Signup and view all the answers

What differentiates DNA from RNA in terms of pyrimidine bases?

DNA contains thymine and RNA contains cytosine. Signup and view all the answers

What is the term for the molecule's existence in keto and enol forms?

Tautomerism Signup and view all the answers

Which compound serves as the energy currency in cells?

ATP Signup and view all the answers

What does a nucleoside refer to?

Base + sugar Signup and view all the answers

Which type of compounds are the nitrogenous bases found in nucleotides?

Aromatic compounds Signup and view all the answers

What are the major purines found in DNA and RNA?

Adenine and guanine Signup and view all the answers

What is the correct order of nucleotide components?

Nucleobase, sugar, phosphate. Signup and view all the answers

Which molecule controls the synthesis of RNA and proteins?

DNA Signup and view all the answers