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The carbon atoms of the deoxyribose sugar in DNA nucleotides are labeled with numbers accompanied by prime marks. Prime marks look similar to apostrophes (e.g., 3').

A video shows the three-dimensional shape of a DNA double helix. The double helix consists of two DNA strands wound around each other, with their sugar-phosphate backbones on the …

DNA, short for deoxyribonucleic acid, consists of nucleotides forming a double helix structure. Nucleotides contain a phosphate group, deoxyribose sugar, and a nitrogenous base. The …

Learn how Alfred Hershey and Martha Chase's groundbreaking 1952 experiment proved that nucleic acid, not protein, is the genetic material. Their work with bacteriophages led to a better …

The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure. The models were tested …

The majority of prokaryotic DNA is found in a central region of the cell called the nucleoid, and it typically consists of a single large loop called a circular chromosome. The nucleoid and some …

DNA, or deoxyribonucleic acid, is formed through a process called DNA replication. DNA replication occurs during the cell division process known as the S phase of the cell cycle.

Specifically, A will typically form bonds with T (in DNA) or U (in RNA), while G will typically form bonds with C. These nucleotides can hydrogen bond with one another because their …

Overview of eukaryotic cells and how they differ from prokaryotic cells (nucleus, organelles, and linear chromosomes).