Human Bio- Chapter 10 Cell division

What are the phases of the Cell Cycle

G1 phase

S phase

G2 phase

M Phase

What happens during G1 phase?

first growth phase

Cell produces new proteins

Grows and carries out its normal tasks for the body

Phase ends when cell’s DNA begins to duplicate

What happens during S phase?

SYnthesis phase

DNA molecules in the cell nucleus form exact copies of themselves

What happens during G2 phase?

second growth phase

Relatively short phase

Involves preparation for cell division

What happens during M phase?

mitotic phase

Cell divides into two daughter cells

After this can go back to G1 phase or G0 phase where it stops dividing

What is meiosis?

Division of the nucleus

Each new cell must contain the same genetic material as the parent cell And meiosis ensures that each body cell receives the same hereditary information (DNA) as its parent cell

PMAT- phases

What happens during interphase?

period between nuclear divisions

Cell goes through G1, S, G2

Quantity of DNA in the nucleus doubles