Biology cells 2
Biology
Level
1
Which of the following processes occur only in S phase of the cell cycle?
organelle replication
chromosomal alterations
DNA replication
cell cycle checkpoints
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Moderator note:
Can you think of what would have to happen for DNA synthesis to occur off schedule? Are the cell cycle checkpoints obeyed in cancer cells?
S-phase (synthesis phase) is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Precise and accurate DNA replication is necessary to prevent genetic abnormalities which often lead to cell death or disease.