AQA A-LEVEL BIOLOGY - MITOSIS
REVISION PAPERS 2023 WITH
CORRECT QUESTIONS AND
ANSWERS
PMAT (Correct Answers) Abbreviation of the four stages of mitosis
Prophase (Correct Answers) The chromosomes thicken and condense, becoming
visible. The nuclear envelope breaks down
Metaphase (Correct Answers) The chromosomes align in the centre of the cell. Spindle
fibres begin to attach to each sister chromatid
Anaphase (Correct Answers) The sister chromatids are pulled apart to opposite poles of
the cell. The centromeres divide in two and move to opposite poles of the cell, pulled by
microtubules
Telophase (Correct Answers) The start of the cell division where the spindle fibres
disintergrate and the nucleolus reforms
Cytokinesis (Correct Answers) The process by which the cell splits into two at the end of
mitosis, forming a new nuclear envelope and plasma membrane
Chromatid (Correct Answers) Half a chromosome
Homologous Chromosomes (Correct Answers) Identical chromosomes
Centromere (Correct Answers) The central region of a chromosome that holds the two
chromatids together
Mitosis (Correct Answers) The process that produces two daughter cells and have the
same number of chromosomes as the parent cell
Binary Fission (Correct Answers) The process of cell division in prokaryotic cells
First Stage of Binary Fission (Correct Answers) The circular DNA replicates, both copies
attach to the cell membrane. The plasmid also replicates
REVISION PAPERS 2023 WITH
CORRECT QUESTIONS AND
ANSWERS
PMAT (Correct Answers) Abbreviation of the four stages of mitosis
Prophase (Correct Answers) The chromosomes thicken and condense, becoming
visible. The nuclear envelope breaks down
Metaphase (Correct Answers) The chromosomes align in the centre of the cell. Spindle
fibres begin to attach to each sister chromatid
Anaphase (Correct Answers) The sister chromatids are pulled apart to opposite poles of
the cell. The centromeres divide in two and move to opposite poles of the cell, pulled by
microtubules
Telophase (Correct Answers) The start of the cell division where the spindle fibres
disintergrate and the nucleolus reforms
Cytokinesis (Correct Answers) The process by which the cell splits into two at the end of
mitosis, forming a new nuclear envelope and plasma membrane
Chromatid (Correct Answers) Half a chromosome
Homologous Chromosomes (Correct Answers) Identical chromosomes
Centromere (Correct Answers) The central region of a chromosome that holds the two
chromatids together
Mitosis (Correct Answers) The process that produces two daughter cells and have the
same number of chromosomes as the parent cell
Binary Fission (Correct Answers) The process of cell division in prokaryotic cells
First Stage of Binary Fission (Correct Answers) The circular DNA replicates, both copies
attach to the cell membrane. The plasmid also replicates
