Cell Biology

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

4. DNA, Chromosomes, and Genomes

Structure and Function of DNA

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Nucleotides and DNA

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Problem

Chargoff’s rules state that…

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Problem

The two complementary DNA strands that make up the double helix run parallel to each other.

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Problem

Which of the following is not a purine nucleotide?