Answer:
gene; DNA strand; chromosome; genome
Step-by-step explanation:
Gene is a sequence in DNA molecule that has a function. It codes for a molecule, usually protein that performs a certain function within the cell. It carries the information that is necessary for the gene expression. Gene is copied into mRNA molecule during the process of transcription. mRNA is used for the protein synthesis (translation).
DNA is packed into chromosomes during the preparation for cell division. Chromosome is highly condensed form of chromatin.
Genetic is a whole genetic material of an organism.