Define chromosome, DNA, and gene. Describe their relationship.

Answer:

Responses may vary but should include some or all of the following information: Humans have 46 chromosomes in each cell: 23 from the mother and 23 from the father. Chromosomes are the threadlike structures that are made of DNA, a complex molecule that contains genetic information. Genes are small segments of DNA that serve as the biochemical units of heredity. Like choromosomes, they operate in pairs, and these pairs can affect a particular process or personal characteristics.