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2. en.wikipedia.org › wiki › DNADNA - Wikipedia

   en.wikipedia.org › wiki › DNA

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   Hace 1 día · The structure of DNA is dynamic along its length, being capable of coiling into tight loops and other shapes. In all species it is composed of two helical chains, bound to each other by hydrogen bonds. Both chains are coiled around the same axis, and have the same pitch of 34 ångströms (3.4 nm).

3. www.genome.gov › genetics-glossary › Deoxyribonucleic-AcidDeoxyribonucleic Acid (DNA) - National Human Genome Research...

   www.genome.gov › genetics-glossary › Deoxyribonucleic-Acid

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   Hace 4 días · Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix.

4. Videos

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     GCSE Biology - What is DNA? (Structure and Function of DNA) #65

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     STRUCTURE OF DNA

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     The Structure of DNA

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5. www.genome.gov › genetics-glossary › NucleotideNucleotide - National Human Genome Research Institute

   www.genome.gov › genetics-glossary › Nucleotide

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   Hace 4 días · … A nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).

6. www.genome.gov › genetics-glossary › Phosphate-BackbonePhosphate Backbone - National Human Genome Research Institute

   www.genome.gov › genetics-glossary › Phosphate-Backbone

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   Hace 4 días · Definition. A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

7. www.britannica.com › science › human-genomeHuman genome | DNA Sequencing & Mapping | Britannica

   www.britannica.com › science › human-genome

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   Hace 2 días · Human genome, all of the approximately three billion base pairs of deoxyribonucleic acid (DNA) that make up the entire set of chromosomes of the human organism. The human genome includes the coding regions of DNA, which encode all the genes (between 20,000 and 25,000) of the human organism, as well.

8. basicgenetics.ansci.cornell.edu › dna_advancedDepartment of Animal Science - Basic Animal Genetics

   basicgenetics.ansci.cornell.edu › dna_advanced

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   Hace 2 días · As the DNA unwinds, its structure resembles a Y-shaped fork in the road, with the unwound strands forming the arms of the Y and the helical portion of the molecule forming the base. Thus, the portion of the DNA helix that is being actively replicated is called the replication fork.

9. www.nagwa.com › en › explainersLesson Explainer: DNA as the Genetic Material | Nagwa

   www.nagwa.com › en › explainers

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   DNA is made up of genes, which are sequences of genetic information that control every function that a cell performs. Figure 1 : A diagram showing a molecule of DNA, composed of two strands that coil around each other to form a double helix.