Genetics is the study of the chemistry of cells, tissues and organs associated with heredity. Cytogenetics is a combination of cytology (the study of cells) and genetics (the study of inherited variations). Through cytogenetics, scientists learn how genetic material, especially chromosomes, can affect future generations. A clinical cytogeneticist performs tests on genetic material in a laboratory, and analyses and interprets the results to determine whether a patient will have an inherited disease or a disease risk.

Doctor density varies by specialty and location. California has 37 practicing clinical cytogeneticists. Broken out by city, clinical cytogenetics doctor density in Burbank is 1, in Fresno is 1, in Hanford is 1, in La Crescenta is 1, in La Mirada is 1, in Lemoore is 1, in Loma Linda is 1, in Los Angeles is 12, in Madera is 3, in Martinez is 1, in Monrovia is 3, in Oakland is 1, in Orange is 4, in Palo Alto is 4, in Pasadena is 1, in Riverside is 1, in San Diego is 2, in San Francisco is 4, in San Jose is 1, in San Juan Capistrano is 1, in Stanford is 3, in Torrance is 1, in West Covina is 1, and in West Hollywood is 3.

California’s population is 36,142,137, and it is America’s third largest and most populous state. It also claims the highest and lowest altitudes in the lower 48 states. The lowest point in the country, Death Valley, is also home to the nation’s highest recorded temperature, 134 degrees. Tourists flock to this state for its many outdoor activities and attractions, including Universal Studios, Disneyland, Rodeo Drive shopping, the Golden Gate Bridge in San Francisco, wine country tours, and California’s numerous beaches and parks. Los Angeles is the nation’s second largest city, but California’s capital is Sacramento. The giant sequoias in California’s forests are among the oldest living things in the world, and a redwood in the Redwood National Park is said to be the world’s tallest tree, at 365 feet. California achieved statehood in 1850, and was named the Golden State after the beginning of the Gold Rush in 1848.

According to 2005 Census estimates, California has a population of 36,132,147. Of this population, 9,308,563 are under the age of 18 and 3,827,038 are at or above the age of 65.