PATHOLOGY

Detailed explanation-1: -DNA replication is the process by which the genome’s DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.

Detailed explanation-2: -During every cell division, a cell must duplicate its chromosomal DNA through a process called DNA replication. The duplicated DNA is then segregated into two “daughter” cells that inherit the same genetic information.

Detailed explanation-3: -Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.

Detailed explanation-4: -The division cycle of most eukaryotic cells is divided into four discrete phases: M, G1, S, and G2. M phase (mitosis) is usually followed by cytokinesis. S phase is the period during which DNA replication occurs.

Detailed explanation-5: -How does replication ensure that cells have a complete set of DNA? During replication a new strand of DNA is synthesized when the other strand is a template to guide the process. Every time the order of the bases in preserved so that DNA can be accurately replicated over and over with identical genetic information.