PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
DNA replication occurs during
A
interphase
B
anaphase
C
metaphase
D
telophase
Explanation: 

Detailed explanation-1: -During interphase, the chromosomes are decondensed and distributed throughout the nucleus, so the nucleus appears morphologically uniform. At the molecular level, however, interphase is the time during which both cell growth and DNA replication occur in an orderly manner in preparation for cell division.

Detailed explanation-2: -Note:Replication of DNA molecule (duplication of DNA) occurs during S phase of Interphase. In this way, the genetic material of a cell is doubled before it enters the division phase, where division of genetic material takes place.

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: -Answer and Explanation: DNA replication occurs during the subphase of interphase called S phase. ā€œSā€ stands for synthesis of new molecules of nuclear DNA.

Detailed explanation-5: -Replication of the DNA occurs during the S phase of interphase.

There is 1 question to complete.