Question

What is the special shape of DNA called?

Answer 1

DNA is the DeoxyriboNucleic Acid. It is an organic compound. It has a unique molecular structure. It is available in all the prokaryotic and eukaryotic cells. It is a long molecule chain and it has a unique genetic code. Shape of DNA is a double helix shape like a twisted ladder. DNA has two types : autosomal DNA and mitochondrial DNA. Autosomal DNA has the $22$ chromosome pair inside. Most of the DNA is available in the cell nucleus.

Complete answer:
Double helix is the special shape of DNA. It is like a twisted ladder. James Watson and Francis Crick found X-Ray diffraction studies. It describes DNA as having a double helix structure. Two strands of DNA are coiled in right handed fashion. Because of the unique structure of DNA, the copying itself during cell division. During the cell division the double helix structure divides into the two parts in the middle side. After the cell division these single strands provide two double strands of DNA. The resulting DNA is also the same as that of the original DNA. It is formed by nitrogen based molecules. DNA is the macromolecule.

Note:
DNA is important to the growth, reproduction and health in human beings. The main function of DNA is passing genetic behavior from parents to their generation. And another function of DNA is to provide the protein or allocate the protein sources for the cells to perform its function. DNA plays four important roles. They are replication, encoding the information, mutation and gene expression. DNA is also important in the brain. It instructs the brain for the genetic character it inherits from the family.