Cell Cycle Flashcards
(14 cards)
What is the term for the regular sequence of events that result in new cells?
Cell cycle.
What are the four distinct phases of the cell cycle?
Mitosis, G1, S, and G2.
Which phase is the time gap between mitosis and DNA replication?
G1 phase.
What is the phase called that is longer than the M phase and is when the cell doubles in size and DNA content?
Interphase.
Which phase is the period of DNA synthesis?
S phase.
Which phase is the gap between DNA duplication and the next mitosis?
G2 phase.
Which phase is known for being the longest and most variable, with active RNA and protein synthesis?
G1 phase.
What occurs during the S phase of the cell cycle?
DNA replication, histone synthesis, and beginning of centrosome duplication.
During which phase do proteins required for mitosis accumulate?
G2 phase.
What is the Go phase?
The phase where cell cycle activities may be temporarily or permanently suspended.
What are cyclin-dependent kinases (CDKs) responsible for in the cell cycle?
Initiating and/or inducing progression through the cell cycle.
Which cyclins bind to CDKs during the G1 phase to enable entry into the S phase?
Cyclins D and E.
Which cyclin enables the cell to leave the S phase and enter the G2 phase?
Cyclin A.
What does cyclin B do when it binds to its CDK?
Induces the cell to leave the G2 phase and enter the M phase.
