EDEXCEL A LEVEL BIOLOGY QUESTION PAPER 2 JUNE 2023 SALTERS NUFFIELD .
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Pearson Edexcel Level 3 GCE
Friday 16 June 2023
Morning (Time: 2 hours) 9BN0/02 Paper
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Biology A (Salters Nuffield)
Advanc...
edexcel a level biology question paper 2 june 2023
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EDEXCEL A LEVEL BIOLOG
QUESTION PAPER 2 JUNE 20
SALTERS NUFFIELD .
, Please check the examination details below before entering your candidate informati
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Friday 16 June 2023
9BN0/02
Morning (Time: 2 hours) Paper
reference
Biology A (Salters Nuffield)
Advanced
PAPER 2:
Energy, Exercise and Coordination
You must have: Total Marks
Scientific calculator, pencil, ruler
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the questions in the spaces provided
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• – usemarks
total mark for this paper is 100.
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1 During growth, cells divide by mitosis. Many organisms also carry out meiosis to
enable sexual reproduction.
(a) (i) In which stage of cell division do spindle fibres attach to the centromeres?
(1)
A anaphase
B interphase
C metaphase
D telophase
(ii) In which stage of the cell division does the nuclear membrane start to
break down?
(1)
A interphase
B metaphase
C prophase
D telophase
(iii) In which stage of cell division are chromatids first visible when using a
light microscope?
(1)
A interphase
B metaphase
C prophase
D telophase
2
, DO NOT WRITE IN THIS AREA
(b) Meiosis is involved in the production of sperm cells.
Crossing over during meiosis can result in genetic variation.
DO NOT WRITE IN THIS AREA
Explain how crossing over can lead to genetic variation.
(3)
.............................................................................................................................................................
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.............................................................................................................................................................
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(Total for Question 1 = 6 marks)
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3
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