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单词 Double helical
释义

Double helical

英语百科

Nucleic acid double helix

Two complementary regions of nucleic acid molecules will bind and form a double helical structure held together by base pairs.
Base pair geometries
The structures of A-, B-, and Z-DNA.
The helix axis of A-, B-, and Z-DNA.

In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical structure of a nucleic acid complex arises as a consequence of its secondary structure, and is a fundamental component in determining its tertiary structure. The term entered popular culture with the publication in 1968 of The Double Helix: A Personal Account of the Discovery of the Structure of DNA, by James Watson.

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