Chapter 10 Part 2 -- The cell Cycle

________ (blue) is the time for normal growth and preparation for cell division

Interphase = ____ + ____ + ____

Interphase occurs in ___ stages, which are:

3 stages - G1, S Phase, G2

G1 Phase of interphase (first gap)

Change is not evident (“gap”) but the cell is biochemically active. Build proteins, DNA precursors, and energy reserves need for DNA

S Phase of Interphase

When DNA synthesis occurs.

Each chromosome is replicated → two sister chromatids

Centrosomes also duplicate

DNA amount doubles, but chromosomes number does not

G2 Phase of interphase (second gap)

Final preparation for mitosis. Energy is replenished, organelles reproduce, and cytoskeleton breaks down.

The mitotic phase involves several steps, including _____ (division of the nucleus/chromosomes) and ______ (division of the cytoplasm)

Karyokinesis (mitosis) and cytokinesis

Karyokinesis (mitosis)

Division of the nucleus/chromosomes.

Steps in Karyokinesis (mitosis)

Prophase → prometaphase → metaphase → anaphase → telophase