Cell Cycle, Interphase, and Stages of Mitosis (Leaving Cert Biology): Flashcards
📚Flashcards
Practise the cards
13 cards from this deck
ShowHide
Practise the cards
13 cards from this deck
What is the cell cycle?
What is the cell cycle?
Series of events in a cell between one division and the next
What are the three main parts of the cell cycle?
What are the three main parts of the cell cycle?
Interphase, nuclear division, cytokinesis
Which is the longest phase of the cell cycle?
Which is the longest phase of the cell cycle?
Interphase (over 90% of total cycle time)
What happens to chromosomes during interphase?
What happens to chromosomes during interphase?
They create identical copies of themselves
What is the chromosome structure after DNA replication?
What is the chromosome structure after DNA replication?
Two identical strands joined at the centromere
How many daughter cells does mitosis produce?
How many daughter cells does mitosis produce?
Two identical daughter cells
What are the four stages of mitosis in order?
What are the four stages of mitosis in order?
Prophase, Metaphase, Anaphase, Telophase (PMAT)
What happens to chromosomes in prophase?
What happens to chromosomes in prophase?
Contract and become visible under a microscope
What happens to the nuclear membrane during prophase?
What happens to the nuclear membrane during prophase?
Starts to break down and disappear
Where do chromosomes line up during metaphase?
Where do chromosomes line up during metaphase?
At the middle (equator) of the cell
What happens in anaphase?
What happens in anaphase?
Chromatids pulled apart to opposite ends of cell
What are the key events in telophase?
What are the key events in telophase?
New nuclear membrane forms; two separate nuclei created
When does DNA replication occur?
When does DNA replication occur?
During interphase, before mitosis begins