Ch. 10 - Cell Cycle

Histones are proteins that help package and organize DNA into structural units called nucleosomes. They are found in chromosomes with DNA coiled around them.

Prokaryotic cells divide by a process called binary fission.

The M phase (mitosis) is not included in interphase.

Haploid refers to a cell that has one complete set of chromosomes, and it is represented by the symbol 'n'.

MPF stands for Maturation Promoting Factor, and injecting it into cells induces mitosis.

The main phases of the cell cycle are G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis).

During the S phase, DNA replication occurs, resulting in the duplication of chromosomes.

Cyclins are proteins that regulate the progression of the cell cycle by activating cyclin-dependent kinases (CDKs).

Haploid cells contain one set of chromosomes (n), while diploid cells contain two sets of chromosomes (2n).

The G1 checkpoint assesses whether the cell is ready to enter the S phase, checking for DNA damage and ensuring sufficient resources are available.