Cell Cycle and Meiosis
Question Booklet
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Unit 2- Woodford County High School
Question 1
(a)
Cell A in the diagram below has two pairs of chromosomes.
Cell B, C and D have each arisen from A by cell division.
(i)
For each of the cells labelled B and C, identify the type of cell division
which has occurred to produce the cell. In each case give a reason for your
answer.
Cell B
Type of division ..............................................................................................
Reason
..............................................................................................................
Cell C
Type of division ..............................................................................................
Reason
..............................................................................................................
(2)
Unit 2- Woodford County High School
(ii)
Explain the reasons for the difference between the parts labelled P and
Q in cells C and D.
..........................................................................................................................
..........................................................................................................................
..........................................................................................................................
..........................................................................................................................
..........................................................................................................................
(3)
Question 2.
The table below refers to the first and second divisions of meiosis.
If the statement is correct, place a tick () in the appropriate box and if the statement is
incorrect, place a cross (X) in the appropriate box.
Statement
First division of
meiosis
Second division of
meiosis
Pairing of homologous
chromosomes occurs.
Chromosomes consist of pairs
of chromatids during prophase
Chiasmata are formed.
Chromatids are separated.
Independent assortment of
chromosomes occurs.
(Total 5 marks)
Unit 2- Woodford County High School
Question 3
The diagram below shows a stage in the division of a cell from an anther of a flower. The
diploid number of this plant is 14.
(a) (i)
Identify the type and stage of nuclear division shown in the diagram.
Type ......……………………………………………………………………
Stage ...……………………………………………………………………...
(2)
(ii) On the diagram, draw and label a line to indicate the position of a
centromere.
(1)
(Total 3 marks)
Unit 2- Woodford County High School
Question 4
Unit 2- Woodford County High School
Unit 2- Woodford County High School
Question 5
Unit 2- Woodford County High School
Unit 2- Woodford County High School
Question 6
Unit 2- Woodford County High School
Unit 2- Woodford County High School
Mark Scheme
Question 1
(a)
(i)
Cell B
Type of division Mitosis;
Reason
no reduction in chromosome number / same number of
chromosomes / both diploid / still diploid / identical to Cell
A;
Cell C
Type of division meiosis / reduction division;
Reason
chromosome number halved / crossing over has occurred
/ haploid / chromosomes different from A;
(2 marks)
(ii) Explain the reasons for the difference between the parts labelled P and Q in
cells C and D.
homologous chromosomes pair / synapsis occurs / bivalents formed;
chiasma formed / crossing over took place;
exchange of materials / genes / genetic information between
chromatids;
(3 marks)
Question 2
Statement
First division of
meiosis
Second division of
meiosis
Pairing of homologous
chromosomes occurs.

X;
Chromosomes consist of pairs
of chromatids during prophase

;
Chiasmata are formed.

X;
Chromatids are separated.

;
Independent assortment of
chromosomes occurs.

X;
[Total 5 marks]
Unit 2- Woodford County High School
Question 3
(a)
(i)
(Type)
(Stage)
meiosis / meiotic / reduction
anaphase ll
OR
OR
meiosis ll
anaphase
1
1
(2)
(apply list rule)
(ii)
position of centromere correctly indicated and labelled
Question 4
Unit 2- Woodford County High School
1
Question 5
Question 6
Unit 2- Woodford County High School