June 2021 QP

Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. H GCSE BIOLOGY Higher Tier Paper 2 H Time allowed: 1 hour 45 minutes Materials For Examiner’s Use For this paper you must have: • a ruler Question Mark • a scientific calculator. 1 Instructions 2 • Use black ink or black ball-point pen. 3 • Pencil should only be used for drawing. 4 • Fill in the boxes at the top of this page. 5 • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of 6 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 want 8 to be marked. 9 • In all calculations, show clearly how you work out your answer. TOTAL Information • The maximum mark for this paper is 100. • 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. * Jun2184612H01 * 8461/2H IB/M/Jun21/E2 3

Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. H GCSE BIOLOGY Higher Tier Paper 2 H Time allowed: 1 hour 45 minutes Materials For this paper you must have: For Examiner’s Use • a ruler Question Mark • a scientific calculator. 1 Instructions 2 • Use black ink or black ball-point pen. 3 • Pencil should only be used for drawing. 4 • Fill in the boxes at the top of this page. 5 • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of 6 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 want 8 to be marked. • In all calculations, show clearly how you work out your answer. 9 TOTAL Information • The maximum mark for this paper is 100. • 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. * Jun2184612H01 * 8461/2H IB/M/Jun21/E2 3

2 Do not write outside the Answer all questions in the spaces provided. box 0 1 The nucleus of a cell contains DNA. 0 1 . 1 Name the structures inside the cell nucleus that contain DNA. [1 mark] Figure 1 shows part of a DNA molecule. Figure 1 0 1 Name the part of the DNA molecule labelled X . 2 . [1 mark] 0 1 . 3 What type of substances are labelled A , C , G and T in Figure 1 ? [1 mark] * 02 * IB/M/Jun21/8461/2H

2 Do not write outside the Answer all questions in the spaces provided. box 0 1 The nucleus of a cell contains DNA. 0 1 . 1 Name the structures inside the cell nucleus that contain DNA. [1 mark] Figure 1 shows part of a DNA molecule. Figure 1 0 1 . 2 Name the part of the DNA molecule labelled X . [1 mark] 0 1 . 3 What type of substances are labelled A , C , G and T in Figure 1 ? [1 mark] * 02 * IB/M/Jun21/8461/2H

3 Do not write outside the Figure 2 shows another section of a DNA molecule. box Figure 2 0 1 4 Four of the substances you named in Question 01.3 are not labelled in part Y . of Figure 2 . Label each of these substances with the correct letter, A , C , G or T . Use information from other parts of Figure 2 to help you. [1 mark] 0 1 What is happening to the DNA in part Z of Figure ? . 5 2 [1 mark] Tick (  ) one box. Differentiation Evolution Fertilisation Replication Turn over ► * 03 * IB/M/Jun21/8461/2H

3 Do not write outside the Figure 2 shows another section of a DNA molecule. box Figure 2 0 1 . 4 Four of the substances you named in Question 01.3 are not labelled in part Y of Figure 2 . Label each of these substances with the correct letter, A , C , G or T . Use information from other parts of Figure 2 to help you. [1 mark] 0 1 . 5 What is happening to the DNA in part Z of Figure 2 ? [1 mark] Tick (  ) one box. Differentiation Evolution Fertilisation Replication Turn over ► * 03 * IB/M/Jun21/8461/2H