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90.AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1
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AQA GCSE PHYSICS PAPER 2 MARK SCHEME LATEST VERSION GCSE COMBINED SCIENCE: TRILOGY 8464/P/2H Physics Paper 2H Mark scheme June 2020 Version: 1.0 Final Mark Scheme *206G 464p2h/MS*

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  • August 26, 2022
  • 37
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

Subjects

  • aqa gcse physics paper 2 mark scheme latest version gcse combined science trilogy 8464p2h physics paper 2h mark scheme june 2020 version 10 final mark scheme 206g 464p2hms

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AQA GCSE BIOLOGY PAPER 2H HIGHER TIER VERSION 1




Please write clearly in block capitals.

Centre Candidate
number number


Surname

Forename(s)

Candidate re
signatu


GCSE
COMBINED SCIENCE: TRILOGY
Higher Tier
H
Biology Paper
2H
Monday 1 June 2020 Afternoon Time allowed: 1 hour 15 minutes
Materials For Examiner’s
For this paper you must have: Use
• a ruler Questio Mark
• a scientific calculator. n
1
Instructions
2
• Use black ink or black ball-point pen.
• Pencil should only be used for drawing. 3
• Fill in the boxes at the top of this page. 4
• Answer all questions in the spaces provided. 5
• If you need extra space for your answer(s), use the lined pages at
6
the end of 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
TOTAL
want to be marked.
• In all calculations, show clearly how you work out your answer.

Information
• The maximum mark for this paper is 70.
• 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.

,*jun20 464 2h01*
IB/M/Jun20/E9
8464/B/2H

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2
Do not write
outside the
0 1 This question is about DNA and box

genes.

0 1 .1 Which diagram represents a DNA molecule?
[1 mark]
Tick () one box.




0 1 .2 Describe the structure of a DNA molecule.
[1 mark]




0 1
.3 A gene is a small section of DNA on a chromosome.

Complete the sentences.
[2 marks]


A gene codes for a particular .
sequence of

This sequence makes a specific .




*02
IB/M/Jun20/8464/

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3
Do not write
outside the
0 1 .4 What is meant by the term box

genome? [1
mark]




0 1 .5 The complete human genome is now known.

Which important scientific advance was made using
knowledge of the human genome?
[1 mark]
Tick () one box.


Discovering antibiotic resistant bacteria


Finding more foods to eat from tropical forests


Tracing how aboriginal people spread across
Australia

Working out when the last ice age ended




Question 1 continues on the next page




*03
IB/M/Jun20/8464/

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