PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When is DNA duplicated (or copied)?
A
Before cell division, in Interphase
B
During Cytokinesis
C
During Mitosis
D
None of the above
Explanation: 

Detailed explanation-1: -M phase (mitosis) is usually followed by cytokinesis. S phase is the period during which DNA replication occurs.

Detailed explanation-2: -During the S phase of the cell cycle, DNA replication occurs at the interphase. There are four stages in the cell cycle i.e. G1, S, G2, and M. DNA replicates before actual cell division so that identical set of the genome of the parent cell is received by each daughter cell.

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.

Detailed explanation-4: -Definition. 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.

There is 1 question to complete.