Cell Cycle 1
What are the main phases of the cell cycle?
Interphase
M phase
During which phase of the cell cycle is chromatin (DNA) replicated?
Interphase (S Phase)
What is the phase in which a cell spends most of its time?
What are 3 reasons that cells go through the process of cell division?
To reproduce, for growth or for repair
What do the chromosomes do during metaphase?
Line up in the center of the cell
Which phase of the cell cycle is the period of growth and development?
Interphase
During which phase do the nucleus divide?
Mitosis
How many stages are there in the Interphase phase of the cell cycle?
How many stages are in the mitotic phase of the cell cycle?
4
PMAT
What are the 3 stages of Interphase?
G1, S, G2
What is considered the growth phases of Interphase?
G1 and G2 Phases
What happens during the G1 stage in the Interphase?
Cell grows
Organelles Duplicate
Carries out normal cellular functions
What happens in the S stage of Interphase?
DNA replication
What happens in Prophase?
Nucleus dissolves and chromosomes condense
What happens during cytokinesis?
Cytoplasm and its contents divide and form 2 identical cells.
What is the difference between mitosis and cytokinesis?
In mitosis, the nucleus (DNA) and its contents divide.
In cytokinesis, the cytoplasm and its contents divide.
What makes up a chromosome?
2 sister chromatids attached at the center by a centromere.
If a cell with 30 chromosomes goes through Meiosis, how many chromosomes will be in the daughter cells?
15
Haploid
What is the purpose of Crossing Over?
To increase genetic variation
When do sister chromatids separate? (which phase of mitosis?)
During anaphase
What is the name of the organelle that produces spindle fibers?
Centriole
What type of cell division is asexual?
Mitosis
A cell with 46 chromosomes undergoes mitosis. How many chromosomes are in the newly formed daughter cells?
46
How many cells are created during Meiosis?
4 daughter cells
When are two identical nuclei formed and a cleavage furrow appear?
Telophase