When discussing the structure of DNA, the term "double-What" refers to the double helix shape of the DNA molecule. The DNA molecule is made up of two long strands that twist around each other in a spiral staircase shape, resembling a twisted ladder. These two strands are held together by chemical bonds between the nucleotide bases.
So, what completes the term "double-What" in the structure of DNA? The answer is "helix". The double helix structure of DNA was first discovered by James Watson and Francis Crick in 1953, and it has since become one of the most iconic images in the field of biology.
The double helix structure of DNA plays a crucial role in the storage and transmission of genetic information. The two strands of DNA run in opposite directions, with each strand serving as a template for the other. This allows for the accurate replication of DNA during cell division, ensuring that each new cell receives an exact copy of the genetic information.
Additionally, the double helix structure of DNA allows for the efficient packaging of genetic information. The DNA molecule is able to coil and condense into a compact form, which is necessary for fitting all of the genetic information into the nucleus of a cell.
Overall, the double helix structure of DNA is a fundamental aspect of genetics and molecular biology. It provides the framework for understanding how genetic information is stored, replicated, and transmitted from one generation to the next. By completing the term "double-What" with "helix", we can better appreciate the elegant and intricate design of the DNA molecule.
In conclusion, the term "double-What" in the structure of DNA refers to the double helix shape of the DNA molecule. This iconic structure, discovered by Watson and Crick, plays a crucial role in the storage and transmission of genetic information. By understanding the double helix structure of DNA, we gain insight into the inner workings of genetics and the complexity of life itself.
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