1 the set of exogenic (physical, chemical and biological) processes that alter the physical and chemical state of rocks at or near the earth's surface.  intensity of most weathering decreases with depth, because variations in temperature and moistures decrease with depth.
A gene is a segment of nucleic acid that contains the information necessary to produce a functional product, usually a protein. Genes consist of a long strand of DNA (RNA in some viruses) that contains a promoter, which controls the activity of a gene, and a coding sequence, which determines what the gene produces.
The sequence of these bases, like â¦ binary code for a computer, store information that codes for proteins on our bodies. Segments of DNA are called genes, and code for one protein. These segments of DNA are copied into another nucleic acid molecule called mRNA in a process known as transcription.