15 Questions
What is the primary function of nucleic acids?
Serving as repositories and transmitters of genetic information
Who first discovered DNA?
Johann Friedrich Miescher
What was the first demonstration that DNA contained genetic information?
Avery, Macleod and MacCary in 1944
What is the chemical basis of heredity?
DNA
How is DNA organized?
Into genes, the fundamental units of genetic information
What holds the double helix structure of DNA together?
Hydrogen bonds
Which term refers to the polymers of nucleotides held by 3' and 5' phosphate bridges?
Nucleic acids
What are nucleotides composed of?
Nitrogenous base, pentose sugar, and phosphate
In nucleotides, which base is found in both DNA and RNA?
Cytosine
What is the main difference between DNA and RNA in terms of the second pyrimidine base?
DNA contains thymine while RNA contains cytosine
What is tautomeric forms of purines and pyrimidines known as?
Tautomerism
Which nitrogenous base is found in both DNA and RNA?
Cytosine
What does the term 'nucleoside' refer to?
Base + sugar + phosphate
Which of the following nitrogenous bases is a purine?
(B) Guanine
What are the major purines found in nucleic acids?
(A) Adenine and guanine
Test your knowledge about nucleic acids and nucleotides, including DNA and RNA, their structure, function, and role in heredity. This quiz covers key concepts related to the chemical constituents of life and the organization of genetic information.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
