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Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. Duplication of the genetic information occurs by the use of one DNA strand as a template for formation of a complementary strand.
2 ημέρες πριν · Learn how hydrogen bonds hold the two strands of DNA together and why they are important for stability and replication. Find out the types and strengths of hydrogen bonds between complementary base pairs and the structure of DNA molecule.
30 Δεκ 2022 · Learn how hydrogen bonds between adenines and thymines, and between guanines and cytosines, stabilize the double-stranded nature of DNA. Find out how base-pairing and complementarity enable DNA to store and transfer genetic information.
12 Ιουν 2023 · DNA’s sugar-phosphate backbone and helical structure make it more stable, less prone to damage, and more compact; however, the hydrogen bonds that hold the strands of DNA together make it more accessible for its biological functions as they are individually weak but cumulatively strong.
Learn how Watson and Crick built on the work of previous scientists to discover the double helix structure of DNA in 1953. Find out how they used X-ray crystallography, base pairing, and hydrogen bonding to propose their model of the DNA molecule.
17 Μαρ 2022 · The bases of one strand bond to the bases of the second strand with hydrogen bonds. Adenine always bonds with thymine, and cytosine always bonds with guanine. The bonding causes the two strands to spiral around each other in a shape called a double helix.
In the form of deoxyribonucleic acid (DNA), the macromolecular nucleic acids are of prime importance in biology because they carry the building plan for each living individual. They are identically reduplicated and inherited from one generation to the next, be it bacterium, plant, animal, or man.
