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The structure of DNA double helix and how it was discovered. Chargaff, Watson and Crick, and Wilkins and Franklin.
DNA structure and function. Nucleic acids. DNA. Molecular structure of DNA. Antiparallel structure of DNA strands. Leading and lagging strands in DNA replication. Speed and precision of DNA replication. Levels of DNA organization. Telomeres and single copy DNA vs repetitive DNA.
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The DNA is broken at the same spot on each homologue—here, between genes B and C—and reconnected in a criss-cross pattern so that the homologues exchange part of their DNA.
There are four nitrogen bases present in DNA: A, C, G, T . Which of the following are correct about which base pairs with which and using how many hydrogen bonds? Choose 2 answers:
DNA (deoxyribonucleic acid) is the molecule that carries genetic information in living organisms.
Learn about how genes encode proteins, which in turn affect an organism's traits.
The currently accepted model for the structure of the plasma membrane, called the fluid mosaic model, was first proposed in 1972. This model has evolved over time, but it still provides a good basic description of the structure and behavior of membranes in many cells.
DNA, or deoxyribonucleic acid, is the molecular basis for inheritance, discovered in the mid-1800s and understood in 1953 with the double helix structure. Composed of a sugar-phosphate backbone and base pairs (adenine-thymine, guanine-cytosine), DNA stores genetic information, replicates, and expresses traits.
How the sequence of nucleotide bases (As, Ts, Cs, and Gs) in a piece of DNA is determined.
