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What is the cell cycle?
The life of a cell from its formation until it divides
What do strings of nucleosomes form?
Chromatin
Which checkpoint checks for completion of DNA replication and DNA damage?
G2 checkpoint
Do chromosomes become more or less condensed during telophase and cytokinesis?
Less
Which term refers to the programmed cell death that helps in eliminating unwanted or damaged cells?
Apoptosis
What is the first phase of the cell cycle?
Interphase
If damage cannot be repaired the cell will undergo what?
Apoptosis
After DNA replication, ______ condenses to form a chromosome?
Chromatin
Do sister chromatids join together or separate during Anaphase?
Separate
During which phase of the cell cycle does the cell actually divide its nucleus into two identical daughter nuclei?
Mitosis.
What is the second phase of the cell cycle?
Prophase
What is the name of the region on each sister chromatid where they are most closely attached?
Centromere
After DNA is replicated, Duplicated copies of chromosomes join together to form _____?
Sister Chromatids
What occurs during mitosis in the M phase?
The nucleus divides
What is the main purpose of the G2 checkpoint in the cell cycle?
It checks for DNA replication and damage before entering mitosis.
Throughout the cell cycle there are what?
Checkpoints
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Which checkpoint checks for microtubule attachment to chromosomes?
M(Spindle Checkpoint)
What occurs during cytokinesis in the M phase?
Cytoplasm divides
What is the term for the phase when a cell grows, replicates its DNA, and prepares for cell division?
G1 Phase.
What stage of the cell cycle is after mitosis?
Cytokinesis
If a sperm cell contains 12 chromosomes, it comes from an animal that has ____ chromosomes.
24
During the “go” stage of the G2 checkpoint where does the cell proceed to?
Mitosis
What does mitosis result in?
2 identical diploid daughter cells
What is the outcome of cytokinesis in animal cells?
Formation of two separate daughter cells.