Answer :
However, even by late 1940s, DNA had essentially replaced the widespread belief that the gene was a protein rather than a nucleic acid.
Because of the DNA's seeming simplicity in terms of chemistry, biologists had trouble embracing it as the genetic information in the 1940s. We previously understood DNA to be a lengthy polymer made up of just four distinct component kinds that are chemically similar to one another. DNA was initially investigated using x-ray spectral resolution, a method for figuring out the three-dimensional molecular structure of a molecule, in the early 1950s (discussed in Chapter 8). According to the preliminary x-ray diffraction findings, DNA is made up of two strand of the polymer coiled into a helix. One of the key hints that led to a Watson-Crick DNA's structure was the discovery that DNA was double-stranded, which was of significant relevance.However, even by late 1940s, DNA had essentially replaced the widespread belief that the gene was a protein rather than a nucleic acid. Only with the introduction of this paradigm did DNA's capacity for replication and The encoding of information becomes clear. This section looks at the architecture of the Dna strand & provides a broad explanation of how it may store genetic information.
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