An Athenian fleet had been driven ashore at Pylos by a storm, and, at the instigation of Demosthenes, the Athenian soldiers fortified the peninsula, and a small force was left there when the fleet departed again.
According to the official Guidelines for Human Gene Nomenclature, a gene is defined as a DNA segment that contributes to phenotype/function. In the absence of demonstrated function a gene may be characterized by sequence, transcription or homology.. Genes are composed of DNA, a molecule in the memorable shape of a double helix, a spiral ladder. Each rung of the spiral ladder consists of two paired chemicals called bases.
Gene is a small fragment of DNA, which contain information for the synthesis of protein. Chromosome contain DNA and basic proteins known as histones. DNA is nucleic acid containing sugar, nucleotide base and phosphate. Chromosome present in the nucleolus of the nucleus. Nucleus is present in the cell.. The gene is made up of the DNA molecule and is the basic unit of protein genesis. 3. The chromosome is a long chain of gene sequences which are themselves made up of DNA molecules.