Multiple Choice
During which phase of the cell cycle are chromosomes duplicated (DNA replication occurs)?
33
views
16. Cell Division
DNA Replication
Multiple Choice
In the cell cycle, which process must occur before mitosis or meiosis can take place?
A
Translation of mRNA into proteins at ribosomes
B
Cytokinesis to divide the cytoplasm into two daughter cells
C
Replication of DNA during S phase of interphase
D
Crossing over between homologous chromosomes during prophase I
Verified step by step guidance1
Understand the phases of the cell cycle: G1 (growth), S (DNA synthesis), G2 (preparation for mitosis), and M (mitosis or meiosis).
Identify that mitosis and meiosis are processes of nuclear division that require an exact copy of the genetic material to be passed on to daughter cells.
Recognize that before mitosis or meiosis can occur, the cell must duplicate its DNA to ensure each daughter cell receives a complete set of chromosomes.
Recall that DNA replication happens during the S phase (Synthesis phase) of interphase, which precedes mitosis or meiosis.
Conclude that the essential process before mitosis or meiosis is the replication of DNA during the S phase, not translation, cytokinesis, or crossing over.
Related Videos
Related Practice
