If you do not have an SSN and are not eligible to obtain an SSN, but you have a requirement to furnish a federal tax identification number or file a federal income tax return, you must apply for an ITIN. By law, an alien individual cannot have both an ITIN and an SSN.
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.
The enzyme that attaches nucleotides together by forming phosphodiester bonds between sugar and phosphate molecules during DNA replication is known as what? DNA Polymerase III attaches nucleotides to the leading and lagging strand in 5' --> 3' direction. If you are referring to the lagging strand, then DNA Ligase will attach theâ¦ Okazaki fragments together and connect the Phosphdiester backbone of the newly synthesized strand.