adjective
Definition: Having two parts or components, often referring to chromosomes that are paired during a specific stage of cell division.
Example: During meiosis, the bivalent chromosomes align and exchange genetic material.
noun
Definition: A pair of chromosomes that are connected together during a specific stage of cell division, particularly in the process of meiosis.
Example: During meiosis, the bivalent structure allows for the exchange of genetic material between homologous chromosomes.