What two chains is a DNA molecule composed of?
Two chains of subunits called nucleotides. Each nucleotide is a sugar, a phosphate group and a nitrogenous base.
Two new DNA chains are formed at the end of DNA replication, both identical in sequence to the template (or parent) chain. These chains are composed of 2 complimentary strands. It is important to note that of the newly formed DNA chains, one strand is the same as the template strand and the other one is a newly synthesized one.
The two chains of nucleotides in a DNA molecule are held together by hydrogen bonds between the bases. In DNA, cytosine forms three hydrogen bonds with guanine, and thymine forms two hydrogen bonds with adenine. If you have a biology textbook, you will find this answer in the caption on the bottom of page 284.
DNA is not a cell, it's a molecule. It is constructed of two sugar-phosphate backbones which wind around each other all along the length of the molecule. These two structures are spaced apart and held together by side-chains whose far ends join to each other. The possible side chains are Adenine, Cytosine, Guanine and Thymine. The choice and ordering of these sidechains encodes the proteins which will be synthesised using the DNA as a pattern.
DNA molecule consists of the two chains, made up of phosphate and sugar molecules, alternately. The two chains are placed parallel to each other and are so called anti parallel to each other, because of their reverse direction to each other. Each sugar is attached to one of the base. There are four bases in DNA molecule. They are adenine, guanine, cytosine and thymine. Here adenine always pairs with thymine and guanine always pair with…
No. There are no hydrocarbon chains in nucleic acids. Nucleic acids are composed of chains of nucleotides. Each nucleotide contains either the sugar ribose or deoxiribose, a phosphate group, and a nitrogen base. DNA, deoxyribonucleic acid, consists of two complementary chains of nucleotides that are joined together by hydrogen bonding between the nitrogen bases, and are twisted into a spiral shape called a double helix. The elements found in DNA and RNA (ribonucleic acid) are…
Conservative replication would leave intact the original DNA molecule and generate a completely new molecule. Dispersive replication would produce two DNA molecules with sections of both old and new DNA interspersed along each strand. Semiconservative replication would produce molecules with both old and new DNA, but each molecule would be composed of one old strand and one new one.