Mitosis and Meiosis Quiz

Question 1

Describe the cell cycle and specify the events which occur at G1, S, and G2 and mitosis?

Answer 1

1st. G1 is triggered. Growth 1: increase in size, and new organelles and proteins are produced. 2nd S. Synthesis : DNA is replicated. G2 is triggered. Growth 2: growth and preparation for cell division. Mitosis: Prophase, Metaphase, Anaphase, Telophase, and Cytokenesis.

Question 2

What occurs during Prophase?

Answer 2

Chromosomes condense, the nuclear membrane breaks down, the nucleolus dissapears, mitotic spindle become visible.

Question 3

What occurs during Metaphase?

Answer 3

Chromosomes line up at the meta-plate, centrosomes move to opposite poles, sister chromatids are attached to the spindle fibres.

Question 4

What occurs during Anaphase?

Answer 4

Sister chromatids are pulled (by the shortening of the spindle fibres) to opposite poles.

Question 5

What occurs during Telophase?

Answer 5

nuclear envelope recreated, nucleolus reappears, and mitotic spindle disappears.

Question 6

What occurs during Cytokenisis?

Answer 6

Animal cells: Furrow created, and cell split Plant cells: cell plate separates the two new cells and fuses