MONTGOMERY COUNTY DISTRICT COURT LOCATIONS Hours of Operation: Both Montgomery County locations - 8:30 a.m. - 4:30 p.m. Monday through Friday except legal holidays . Administrative Clerk - Markisha Gross. District Court for Montgomery County (06-01) 191 East Jefferson Street Rockville, MD 20850-2630. Bus Information: Ride On Buses, Routes 46, 54, 63, T2
sections of DNA in the chromosome that carry the information for the traits of an organism such as hair color, eye color, height, etc. Genes, like the chromosomes they make up, are in pairs. One half of the pair comes from one parent and one half from the other parent and are joined into pairs when the sperm fertilizes the egg during reproduction. Each member of a pair of genes is called an allele.
What is a gene? A gene is the basic physical and functional unit of heredity. Genes, which are made up of DNA, act as instructions to make molecules called proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project has estimated that humans have between 20,000 and 25,000 genes. Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases.