Mitosis and Meiosis Quiz Flashcards Preview

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Flashcards in Mitosis and Meiosis Quiz Deck (6)
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1

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

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.

2

What occurs during Prophase?

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

3

What occurs during Metaphase?

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

4

What occurs during Anaphase?

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

5

What occurs during Telophase?

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

6

What occurs during Cytokenisis?

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