AQA BIOLOGY AS LEVEL JUNE PAPER 2

AQA BIOLOGY AS LEVEL JUNE 2023 7401 PAPER 2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Please write clearly in block capitals. Centre number Candidate number Surna me Forena me(s) Candidate signature I declare this is my own work. AS BIOLOGY Paper 2 Thursday 25 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instruc tions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all question s. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number again st your answer(s). • Show all your working. • Do all rough work in this book. Cross through any work you do not want to be marked. Informati on • The marks for the questions are shown in brackets. • The maximum mark for this paper is 75. *JUN237401201* 7401/2 *2* IB/M/Jun23 /7401/2 0 1 . 1 Which statement about the function of ribosomes is correct? Tick (✓) one box. Site of transcription, catalyse the joining of amino acids by hydrolysis reactions Site of transcription, catalyse the joining of nucleotides by condensat ion reactions Site of translation, catalyse the joining of amino acids by condensat ion reactions Site of translation, catalyse the joining of nucleotides by hydrolysis reactions 0 1 . 2 Name two biologi cal molecules that can be coded for by a gene. Do not include a polypeptide or protein in your answer. 2 Answer all questions in the spaces provided. Do not write outside the box [1 mark] [1 mark] 1 2