2025 AQA AS Biology Paper 2 –
Question Paper and Mark Scheme |
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what is pre mrna - ✔✔✔ANSWER-pre mrna only produced
in eukaryote cell. splicing only occurs in eukaryote cell.
what is pna - ✔✔✔ANSWER-pna is complementary to
dna,reducing rna polymerase activity.
, What is tRNA? - ✔✔✔ANSWER-provides energy.so amino acid
joins to trna.
What is a isomer? - ✔✔✔ANSWER-isomer
what term is used to describe the different structures of a
glucose and b glucose? [1mark] - ✔✔✔ANSWER-hydroxyl group
describe how the result from the colorimeter can identify the
fruit juice containing the higher sugar content [1 mark] -
✔✔✔ANSWER-juice b
suggest how pna affected the transcription of the section of
dna [2 marks] - ✔✔✔ANSWER-tight binding to mrna due to the
strand displacement in a dna target
describe how the production of messenger rna (mrna) in a
eukaryote cell is different from the production of mrna in a
prokaryotic cell[2marks] - ✔✔✔ANSWER-eukaryotic
transpiration takes place of the nucleus,while prokaryotic
transcription takes place in the cytoplasm.
describe the role of atp in the process of translation in protein
synthesis[2marks] - ✔✔✔ANSWER-the formation of a peptide bond
Question Paper and Mark Scheme |
Latest Update with Verified Exam
Questions, Correct Answers, Solved
Past Papers, Study Guide &
Comprehensive Prep Material
what is pre mrna - ✔✔✔ANSWER-pre mrna only produced
in eukaryote cell. splicing only occurs in eukaryote cell.
what is pna - ✔✔✔ANSWER-pna is complementary to
dna,reducing rna polymerase activity.
, What is tRNA? - ✔✔✔ANSWER-provides energy.so amino acid
joins to trna.
What is a isomer? - ✔✔✔ANSWER-isomer
what term is used to describe the different structures of a
glucose and b glucose? [1mark] - ✔✔✔ANSWER-hydroxyl group
describe how the result from the colorimeter can identify the
fruit juice containing the higher sugar content [1 mark] -
✔✔✔ANSWER-juice b
suggest how pna affected the transcription of the section of
dna [2 marks] - ✔✔✔ANSWER-tight binding to mrna due to the
strand displacement in a dna target
describe how the production of messenger rna (mrna) in a
eukaryote cell is different from the production of mrna in a
prokaryotic cell[2marks] - ✔✔✔ANSWER-eukaryotic
transpiration takes place of the nucleus,while prokaryotic
transcription takes place in the cytoplasm.
describe the role of atp in the process of translation in protein
synthesis[2marks] - ✔✔✔ANSWER-the formation of a peptide bond
