biology Higher Tier Paper 2H

GCSE BIOLOGY Higher Tier Paper 2H Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • 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). • Do all rough work in this book. Cross through any work you do not want to be marked. • In all calculations, show clearly how you work out your answer. 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. *JUN22 4612H01* IB/M/Jun22/E18 8461/2H There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED box Answer all questions in the spaces provided. box There are two types of reproduction: • sexual reproduction • asexual reproduction. . Complete Table 1 to compare sexual reproduction with asexual reproduction. Write a tick ( ) in the box if the statement is true. The first row has been completed for you. [2 marks] Table 1 Sexual reproduction Asexual reproduction Cell division occurs Fertilisation occurs Genes are passed on from parent to offspring Offspring are genetically identical to each other . Gametes are formed in sexual reproduction. Name the male gamete formed in flowering plants. [1 mark] Question 1 continues on the next page Turn over ► Use information from Figure 1 to answer questions 01.3 to 01.6. box . When is the DNA in the chromosomes being copied? Tick () one box. [1 mark] Between 0 and 3 hours Between 3 and 4 hours Between 4 and 5 hours Between 5 and 6 hours . Cells divide twice during meiosis. Which two times in Figure 1 show one cell dividing into two cells? Tick () two boxes.