Biochemistry

Learn the toughest concepts covered in Biochemistry with step-by-step video tutorials and practice problems by world-class tutors

1.Introduction to Biochemistry

Nucleic Acids

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Nucleic Acids

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The Nucleotide

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Nitrogeneous Bases & Base-Pairing

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Comparing DNA & RNA

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Problem

A) What is the assumed directionality of the nucleotide sequence below? Label the ends of the molecule.

A C G T C T A A A C G G C T A


B) Is the sequence above from a DNA or RNA molecule? How do you know?


C) Write the complementary sequence to the strand below (include the directionality).

A C G T C T A A A C G G C T A

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Problem

Which of the following nitrogenous bases is a purine?