14 Questions
During which phase of the cell cycle does DNA replication occur?
S
Which stage of interphase is characterized by the cell growing and producing RNA and proteins necessary for checkpoint?
G1
What happens during metaphase of the mitotic phase?
Chromosomes align at the middle
Which phase of mitosis involves the dissolution of the nuclear wall and the formation of the spindle?
Prophase
What is the main function of a checkpoint in the cell cycle?
Check if the cell is ready for division
Which stage is characterized by a resting phase where cells neither divide nor grow?
G0
What happens in anaphase of mitosis?
Separation of chromosomes into chromatids
What is the main purpose of the G0 phase in the cell cycle?
To allow cells that no longer divide to rest
Which checkpoint is responsible for ensuring that the cell has grown sufficiently and has the necessary RNA and proteins for further progression in the cell cycle?
G1 checkpoint
What occurs during anaphase of the mitotic phase?
Separation of chromosomes into chromatids
Which stage of the cell cycle involves the formation of a cleavage in the cell and the dissolution of spindle and fibers?
Telophase
During which phase of the cell cycle do cells replicate their DNA?
S phase
What happens during metaphase of mitosis?
Chromosomes align at the middle or equator
Which stage of interphase is primarily responsible for cell growth and producing RNA and proteins necessary for progression through the cell cycle?
G1 phase
Study Notes
- Cell cycle: series of events leading to the creation of a new cell
- Two major phases: Interphase and Mitotic Phase
- Interphase: resting stage, accounts for most of the cell cycle
- Four stages in Interphase: G0, G1, S, and G2
- G0: resting phase where cell neither divides nor grows, occurs in mature cells
- G1: longest stage, cell grows and produces RNA and proteins for upcoming division
- S: stage for DNA replication, carries genetic information
- G2: cell grows and produces proteins, stores energy
- Mitotic Phase: active phase leading to cell division
- Prophase: nucleus wall starts to dissolve, spindle formation begins
- Metaphase: chromosomes align at the middle of the cell, spindle fully developed
- Anaphase: chromosomes separate into chromatids, separation at the centromere
- Telophase: cleavage forms in the cell, chromosomes reach opposite ends, spindle and fibers dissolve, nuclear wall starts to form.
Learn about the cell cycle, focusing on the interphase stage which covers four stages of growth and preparation. Explore the significance of checkpoints during cell growth and division.
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