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Flashcards in Eukoryotic cell cycle Deck (11):
1

What are the stages of the Eukaryotic cell cycle?

- G1
- S
-G2
- Mitosis
- Cytokinesis

2

What happens in G1?

- Biosynthesis
- Growth
- Amino acids form proteins for DNA replication
- Chromosomes in singular chromatin form

3

What happens in S phase?

- Synthesis of new DNA
- DNA replication occurs
- All chromosomes are replicated
- Very rapid

4

What happens in G2 phase?

- Cells continue to grow
- proofreading enzymes check DNA for correct DNA replication

5

What happens in G0 phase?

- Resting phase where no replication occurs
- Apoptosis may occur (programmed cell death)

6

What are the stages of Mitosis?

- Prophase
-Metaphase
- Anaphase
- Telophase

7

What occurs in Prophase?

- DNA supercoiling (fat clustery ball)
- Nuclear envelope breaks down
- Centrioles divide and move to the poles
- spindles form

8

What occurs in Metaphase?

- Sister chromatids attach to the spindles by their centromeres at the cell equator

9

What occurs in Anaphase? ( Anarchy splits up society)

- centromeres of each chromatic pair split up
- motor proteins drag chromatids towards the poles

10

What occurs in Telophase?

- New nuclear envelopes form around the chromosomes forming two nuclei

11

What occurs in Cytokinesis?

- in plant cells a new cell wall is built between the nuclei
- in animal cells the cytoplasm is pinched off