2.4

Question 1

What is the cell cycle?

Answer 1

The cell cycle is the sequence of events in the cell from one cell division to another.

Question 2

spindle fibres attach to what

Answer 2

Spindle fibres attach to the sister chromatids and pull them apart during the anaphase.

Question 3

Mitosis

Answer 3

Spindle fibres attach to the sister chromatids

Question 4

Interphase

Answer 4

It’s the longest stage of the cell cycle where cell grows, copies DNA, prepares to divide.

Question 5

Prophase

Answer 5

The first stage of mitosis, sister chromatids are formed during interphase have shortened and thickened.

Question 6

Metaphase

Answer 6

Second stage, spindle completely formed, sister chromatids attach to spindle fibers, sister chromatids line up along middle of cell, halfway between the poles of the cell

Question 7

Anaphase

Answer 7

Third stage, S.C are pulled apart by spindle and move to the opposite poles of the cell. Chromatids called chromosomes again

Question 8

Telophase

Answer 8

Last stage, new chromosomes reached opposite poles of cell, nuclear membranes form, spindle disappears, chromosomes lengthen and thin, nucleoli reappear. (Prophase reversed)

Question 9

Cytokinesis

Answer 9

Second process in cell division. Begins at the end of mitosis (during telophase) Cytokinesis divides the cytoplasm into 2 daughter cells