Knowledge Base Code

【00104】

DNA double helix

Difficulty:Intermediate

Tags:DNA / Genetics / Molecular Biology

The DNA double helix is the carrier of genetic information, composed of two antiparallel polynucleotide strands held together by base pairing to form a stable helical structure.

Gene base pairing numerical sequence

Adenine (A)

Pairing: Thymine (T)

Guanine (G)

Pairing: Cytosine (C)

Example Sequence

ATCG-GCAT-TAGC

DNA structural parameters

Helix Diameter

2 nm

Base pairs per circle

10 correct

Pitch

3.4 nm