The building block of DNA is called the nucleotide, which is composed of a nitrogenous base (adenine, guanine, cytosine, or thymine), a five-carbon sugar (deoxyribose in DNA), â¦ and one to three phosphate groups.+ 16 others found this useful. Kenneth Huynh.he building block of DNA is called the nucleotide, which is composed of a nitrogenous base (adenine, guanine, cytosine, or thymine), a five-carbon sugar (deoxyribose in DNA), â¦ and one to three phosphate groups. + 16 others found this useful. Kenneth Huynh.
So, to answer your question - yes, they are different. localhost is given an ip address in the 127.0.0.0 network and given to a virtual loopback network device lo. This device is present on all systems, regardless of whether they have a physical network device fitted (WiFi or Ethernet, for example).
Instead of 127.0.0.01, IPv6 represents its loopback address as simply ::1 (0000:0000:0000:0000:0000:0000:0000:0001) and, unlike IPv4, does not allocate a range of addresses for this purpose. The name localhost also carries a special meaning in computer networking used in conjunction with 127.0.0.1.