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AQA AS BIOLOGY 7401/2 Paper 2 June 2022 Question Paper And
Mark scheme .
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
BIOLOGY
Paper 2
Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
• a ruler with millimetre measurements
Questio Mark
• a scientific calculator. n
1
Instructions
2
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 3
• Answer all questions. 4
• You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank
6
pages.
7
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
• Show all your working. 9
• Do all rough work in this book. Cross through any work you do
not want to be marked. TOTAL
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.
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Guides
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Guides
2
Do not
write
Answer all questions in the spaces outside the
box
provided.
0 1 .1 What is a gene?
[1 mark]
0 1 .2 Describe how the production of messenger RNA (mRNA) in a
eukaryote cell is different from the production of mRNA in a
prokaryote cell.
[2 marks]
0 1 .3 Scientists produced a short, single-stranded, artificial nucleic acid, called
PNA. The PNA binds to a small section of DNA.
The scientists introduced PNA into cells and discovered that these cells
produced less mRNA than cells that did not contain PNA.
Suggest how PNA affected the transcription of the section of DNA.
[2 marks]
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Guides
3
Do not
write
0 1 .4 Describe the role of ATP in the process of translation in protein outside the
box
synthesis. [2 marks]
7
Turn over for the next question
Turn over ►
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Guides
AQA AS BIOLOGY 7401/2 Paper 2 June 2022 Question Paper And
Mark scheme .
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
BIOLOGY
Paper 2
Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
• a ruler with millimetre measurements
Questio Mark
• a scientific calculator. n
1
Instructions
2
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 3
• Answer all questions. 4
• You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank
6
pages.
7
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
• Show all your working. 9
• Do all rough work in this book. Cross through any work you do
not want to be marked. TOTAL
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
*JUN227401201* Downloaded by: ravinderhunjan | Want to earn
Distribution of 7401/
£756 extra
this documIBe/Mnt/Jiusni2ll2e/gEa9l per year?
2
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
2
Do not
write
Answer all questions in the spaces outside the
box
provided.
0 1 .1 What is a gene?
[1 mark]
0 1 .2 Describe how the production of messenger RNA (mRNA) in a
eukaryote cell is different from the production of mRNA in a
prokaryote cell.
[2 marks]
0 1 .3 Scientists produced a short, single-stranded, artificial nucleic acid, called
PNA. The PNA binds to a small section of DNA.
The scientists introduced PNA into cells and discovered that these cells
produced less mRNA than cells that did not contain PNA.
Suggest how PNA affected the transcription of the section of DNA.
[2 marks]
*02* Downloaded by: ravinderhunjan | Want to earn
£756
IB/M/Jun22/7401/2
Distribution of this document is illegal extra per
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
3
Do not
write
0 1 .4 Describe the role of ATP in the process of translation in protein outside the
box
synthesis. [2 marks]
7
Turn over for the next question
Turn over ►
*03* Downloaded by: ravinderhunjan | Want to earn
£756
IB/M/Jun22/7401/2
Distribution of this document is illegal extra per
