Chromosomes and Genes

Explain the biological terms: gamete, chromosome, and gene.

Describe DNA as a complex polymer composed of two strands that twist to form a double helix structure.

Define the genome as the entire genetic material contained within an organism.

Explain that sexual reproduction involves the fusion of male and female gametes (sperm and egg cells in animals), formed through the process of meiosis.

Understand that the mixing of genetic information during sexual reproduction leads to variation among offspring.

Identify that genetic material is located in the nucleus of a cell and is composed of DNA organized into chromosomes.

Recall that human body cells typically contain 23 pairs of chromosomes.

Describe a gene as a small, distinct section of DNA on a chromosome that codes for a specific sequence of amino acids to synthesize a particular protein.

Understand that an organism's genome comprises all the genes found within the DNA of its body cells.