6.2 Mitosis

Question 1

Asexual reproduction

Answer 1

Production of genetically identical offspring from one parent in multicellular organisms.

Question 2

Chromatid

Answer 2

Two identical DNA molecules formed from one chromosome

Question 3

Centromere

Answer 3

Region where two chromatids join together

Question 4

Prophase

Answer 4

First stage, chromosomes formed. Nucleolus disappears. Nuclear membrane starts breaking down. Spindle fibres form. Centrioles migrate to opposite poles. Spindle fibres move chromosomes to cell centre. Nuclear envelope disappears

Question 5

Metaphase

Answer 5

Second stage, chromosomes form a plane in cell centre called metaphase plate, held in position

Question 6

Anaphase

Answer 6

Third stage, chromatid pairs divide, chromatids separated, dragged by centromeres through liquid cytosol

Question 7

Telophase

Answer 7

Fourth stage, chromatids reach
& are called chromosomes. 2 new sets of chromosomes assemble at each pole, nuclear envelope reforms, chromosomes uncoil, nucleolus formed, cytokinesis begins

Question 8

Cytokinesis

Answer 8

Actual division of cell into 2 separate cells

Question 9

Golgi apparatus

Answer 9

Transport, sorting and modification of both protein and lipids