Evatee
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GCSE
BIOLOGY
Higher Tier Paper 2H
H
Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
a ruler Question Mark
a scientific calculator.
1
Instructions 2
Use black ink or black ball-point pen. 3
Pencil should only be used for drawing. 4
Fill in the boxes at the top of this page.
5
Answer all questions in the spaces provided.
If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
Do all rough work in this book. Cross through any work you do not want 8
to be marked.
In all calculations, show clearly how you work out your answer. 9
TOTAL
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation
in your answers.
, Written by
Evatee
*Jun21 4612H01*
IB/M/Jun21/E23 8461/2H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 The nucleus of a cell contains DNA.
. Name the structures inside the cell nucleus that contain DNA.
[1 mark]
Figure 1 shows part of a DNA molecule.
Figure 1
. Name the part of the DNA molecule labelled X.
[1 mark]
. What type of substances are labelled A, C, G and T in Figure 1?
[1 mark]
*02*
IB/M/Jun21/8461/2H
, 3
Do not write
outside the
Figure 2 shows another section of a DNA molecule. box
Figure 2
0 1
.4 Four of the substances you named in Question 01.3 are not labelled in part Y
of Figure 2.
Label each of these substances with the correct letter, A, C, G or T.
Use information from other parts of Figure 2 to help you.
[1 mark]
. What is happening to the DNA in part Z of Figure 2?
[1 mark]
Tick () one box.
Differentiation
Evolution
Fertilisation
Replication
*03*
IB/M/Jun21/8461/2H