The process by which a cell makes an exact copy of its DNA before cell division, ensuring genetic consistency.

A hybrid molecule formed when a single strand of RNA binds to a complementary strand of DNA.

An enzyme that breaks down DNA molecules by cleaving the phosphodiester bonds between nucleotides.

A type of septal pore in fungal cells that allows the passage of cytoplasm and organelles between adjacent cells.

A distinct functional or structural unit of a protein, often defined by its specific amino acid sequence and role in molecular recognition.

A class of sugars formed by the combination of two monosaccharides, commonly including sucrose, lactose, and maltose.

A term describing animals with disc-shaped or round feet, often seen in certain amphibians and reptiles.

The process by which certain biological molecules, such as DNA, are synthesized in fragments rather than continuously.

Genetic variation that results in distinct categories, such as the presence or absence of a trait, rather than a smooth range of variation.

Referring to a type of placental structure in some animals where the chorion and allantois are fused, forming a disc-like shape.