Visual representation of the DNA double helix structure highlighting its molecular components and base pairing.

DNA double helix structure diagram illustrating the double helix model with labeled components and base pairing.

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Show Answer Key & Explanations Step-by-step solution for: Julia Nordstrom - Copy of DNA Coloring - The Double Helix.pdf ...

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- The DNA double helix is composed of two antiparallel strands held together by hydrogen bonds between complementary nitrogenous bases.
- Adenine (A) pairs with thymine (T) via two hydrogen bonds, and guanine (G) pairs with cytosine (C) via three hydrogen bonds.
- The sugar-phosphate backbones run in opposite directions: one strand runs 5' to 3', while the complementary strand runs 3' to 5'.
- This complementary base pairing ensures accurate replication and transcription of genetic information.
- The double helix structure provides stability and allows for efficient packing of DNA within cells.

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