Cell Cycle, DNA Replication, Mitosis, and Meiosis

Front

What is the cell cycle?

Back

The cell cycle is the series of phases that a cell goes through to grow and divide, including interphase (G1, S, G2) and mitotic phase (mitosis and cytokinesis).

Front

What is DNA replication?

Back

DNA replication is the process by which a cell makes an exact copy of its DNA, occurring during the S phase of the cell cycle.

Front

What is mitosis?

Back

Mitosis is a type of cell division that results in two genetically identical daughter cells, used for growth and repair.

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, producing four genetically diverse gametes.

Front

What is crossing over?

Back

Crossing over is the exchange of genetic material between homologous chromosomes during meiosis, increasing genetic diversity.

Front

What direction is DNA replicated?

Back

DNA is replicated in the 5' to 3' direction.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short sequences of DNA synthesized on the lagging strand during DNA replication.

Front

What happens during anaphase of mitosis?

Back

During anaphase, sister chromatids are pulled apart to opposite poles of the cell.

Front

What is the significance of crossing over in meiosis?

Back

Crossing over increases genetic variation among offspring by creating new combinations of alleles.

Front

What is the leading strand in DNA replication?

Back

The leading strand is the DNA strand that is synthesized continuously in the 5' to 3' direction.