AP BIOLOGY

Detailed explanation-1: -The complete set of DNA (genetic material) in an organism. In people, almost every cell in the body contains a complete copy of the genome. The genome contains all of the information needed for a person to develop and grow.

Detailed explanation-2: -The correct option is B Genome. The chromosome number varies from one species to the other, but is fixed for each species. In most organisms chromosomes occur in pairs. Genome is the complete set of genetic information in an organism.

Detailed explanation-3: -DNA is the hereditary material in humans and almost all other organisms. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA). DNA contains the code for building and maintaining an organism.

Detailed explanation-4: -An organism’s complete set of DNA is called its genome. Virtually every single cell in the body contains a complete copy of the approximately 3 billion DNA base pairs, or letters, that make up the human genome. With its four-letter language, DNA contains the information needed to build the entire human body.