[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-207468-105":3,"detail-sidebar-cat-0-en-105":74,"doc-detail-207468-en":124},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":67,"head_meta":69,"extra_data":71,"updated_unix":73},105,"en","june-2020-qp-gcse-combined-science-trilogy-higher-tier-biology-paper-2h-dna-genes-reflex-actions-reaction-time-biodiversity","June 2020 QP - GCSE Combined Science: Trilogy Higher Tier Biology Paper 2H - DNA, genes, reflex actions, reaction time, biodiversity","","GCSE Combined Science: Trilogy Higher Tier Biology Paper 2H (1 June 2020) assesses understanding of DNA and genes, including DNA structure, gene function, and the meaning of genome. It also evaluates concepts of inheritance and variation, linking DNA changes to differences between individuals. Questions extend to reflex action pathways, methods for testing reaction time, calculating mean values from data, and interpreting evidence for conclusions. The paper further examines biodiversity, including how peat bog destruction affects ecosystems and the environmental harm of peat use.",{"@graph":14,"@context":66},[15,34,49],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/june-2020-qp-gcse-combined-science-trilogy-higher-tier-biology-paper-2h-dna-genes-reflex-actions-reaction-time-biodiversity/207468/",4,{"url":32,"name":10,"@type":35,"author":36,"headline":10,"publisher":39,"fileFormat":42,"inLanguage":8,"description":12,"dateModified":43,"datePublished":43,"encodingFormat":42,"isAccessibleForFree":44,"interactionStatistic":45},"DigitalDocument",{"name":37,"@type":38},"Berry Peter","Person",{"url":19,"name":40,"@type":41},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":46,"interactionType":47,"userInteractionCount":4},"InteractionCounter",{"@type":48},"ViewAction",{"@type":50,"mainEntity":51},"FAQPage",[52,58,62],{"name":53,"@type":54,"acceptedAnswer":55},"What is asked about DNA and genes in this paper?","Question",{"text":56,"@type":57},"Students identify diagrams of DNA, describe DNA structure, complete gene-related sentences, and explain the term genome. They also answer a question about an important advance enabled by knowledge of the human genome.","Answer",{"name":59,"@type":54,"acceptedAnswer":60},"How does the paper assess reflex actions?",{"text":61,"@type":57},"It requires describing how a stimulus from a hot pan reaches the muscle in the arm, using the nervous pathway for a reflex action.",{"name":63,"@type":54,"acceptedAnswer":64},"What skills are tested in the reaction time and biodiversity questions?",{"text":65,"@type":57},"Students design a method to test reaction time (including test details), calculate a mean reaction time value from a table, and use evidence to support or refute a conclusion. For biodiversity, students define biodiversity, give a use of peat, and explain environmental harm caused by peat use without referring to biodiversity.","https://schema.org",{"og:url":32,"og:type":68,"og:title":10,"og:site_name":40,"og:description":12},"article",{"robots":70,"canonical":32},"index,follow",{"doc_id":72,"site_id":7},207468,1788599703,{"code":4,"msg":75,"data":76},"success",[77,81,85,88,93,98,103,108,113,116,120],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":78,"show_sort_weight":79,"slug":80},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":82,"show_sort_weight":83,"slug":84},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":86,"slug":87},70,"exam",{"id":89,"doc_module":4,"doc_module_name":25,"category_name":90,"show_sort_weight":91,"slug":92},5,"Comic",60,"comic",{"id":94,"doc_module":4,"doc_module_name":25,"category_name":95,"show_sort_weight":96,"slug":97},6,"Technology",50,"technology",{"id":99,"doc_module":4,"doc_module_name":25,"category_name":100,"show_sort_weight":101,"slug":102},7,"Healthcare",40,"healthcare",{"id":104,"doc_module":4,"doc_module_name":25,"category_name":105,"show_sort_weight":106,"slug":107},8,"Research & Report",30,"research-report",{"id":109,"doc_module":4,"doc_module_name":25,"category_name":110,"show_sort_weight":111,"slug":112},9,"Religion & Spirituality",20,"religion-spirituality",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":114,"show_sort_weight":111,"slug":115},"World Cup","world-cup",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":118,"show_sort_weight":117,"slug":119},10,"Lifestyle","lifestyle",{"id":121,"doc_module":4,"doc_module_name":25,"category_name":122,"show_sort_weight":89,"slug":123},19,"General","general",{"code":4,"msg":75,"data":125},{"doc_id":72,"user_id":126,"nickname":37,"user_avatar":127,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":128,"file_id":129,"file_url":130,"file_type":131,"file_size":132,"view_count":4,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":133,"language":134,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":135,"faqs":136,"seo_title":137,"seo_description":12,"update_tm":73,"read_time":138},1374402524268,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","| Please write clearly in block capitals. |  |  |  |\n| --- | --- | --- | --- |\n| Centre number |  | Candidate number |  |\n| Surname  \u003Cbr>Forename(s)  \u003Cbr>Candidate signature  \u003Cbr>I declare this is my own work. |  |  |  |\n\nGCSE  \nCOMBINED SCIENCE: TRILOGY  \nHigher Tier  \nBiology Paper 2H  \nH  \nMonday 1 June 2020 Afternoon Time allowed: 1 hour 15 minutes  \nMaterials  \nFor this paper you must have:  \n• a ruler  \n• a scientific calculator.  \nInstructions  \n• Use black ink or black ball-point pen.  \n• Pencil should only be used for drawing.  \n• Fill in the boxes at the top of this page.  \n• Answer all questions in the spaces provided.  \n• 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) .  \n• Do all rough work in this book. Cross through any work you do not want to be marked.  \n• In all calculations, show clearly how you work out your answer.  \n\n| For Examiner’s Use |  |\n| --- | --- |\n| Question | Mark |\n| 1 |  |\n| 2 |  |\n| 3 |  |\n| 4 |  |\n| 5 |  |\n| 6 |  |\n| 7 |  |\n| TOTAL |  |\n\nInformation  \n• The maximum mark for this paper is 70.  \n• The marks for questions are shown in brackets.  \n• You are expected to use a calculator where appropriate.  \n• You are reminded of the need for good English and clear presentation in your answers.  \n0  1  This question is about DNA and genes.  \n 0  1  .  1 Which diagram represents a DNA molecule?  \n[1 mark]  \nTick ( 􀀹 ) one box.  \n0  1  .  2 Describe the structure of a DNA molecule.  \n[1 mark]  \n 0  1  .  3 A gene is a small section of DNA on a chromosome.  \nComplete the sentences.  \n[2 marks]  \nA gene codes for a particular sequence of   .  \nThis sequence makes a specific   .  \nDo not write outside the box  \n 0  1  .  4 What is meant by the term genome?  \n[1 mark]  \n0  1  .  5  The complete human genome is now known.  \nWhich important scientific advance was made using knowledge of the  \nhuman genome?  \n[1 mark]  \nTick ( 􀀹 ) one box.  \nDiscovering antibiotic resistant bacteria   \nFinding more foods to eat from tropical forests  Tracing how aboriginal people spread across Australia  Working out when the last ice age ended   \nQuestion 1 continues on the next page  \noutside the box  \n\n| A student found six different snails of one species in his garden.\u003Cbr>Figure 1 shows the snails.\u003Cbr>Figure 1\u003Cbr>|  |  |  |  |  | outside box |\n| --- | --- | --- | --- | --- | --- | --- |\n|  | 0 | 1 | . | 6 | All the snails are different.\u003Cbr>What scientific term describes differences in characteristics between individuals of a species?\u003Cbr>[1 mark]\u003Cbr>A change in DNA has caused snail P to be very different from the other five snails.\u003Cbr>Suggest why there might be an increasing number of snails similar to snail P in each future generation.\u003Cbr>[2 marks]\u003Cbr> |  |\n|  |  |  |  |  |  |  |\n|  | 0 | 1 | . | 7 |  |  |\n|  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |\n|  |  |  |  |  |  | 9 |\n|  |  |  |  |  |  |  |\n\nthe  \nTurn over for the next question  \nDO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED  \noutside the box  \n0  2  Human reactions are a response to an external change.  \n0  2  .  1  Reflex actions help to protect the body against damage.  \nFigure 2 shows the nervous pathway for a reflex action.  \nFigure 2  \nA stimulus from the hot pan will cause the muscle in the arm to contract and move the finger away.  \nDescribe how the stimulus from the hot pan reaches the muscle in the arm.  \n[4 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n\nbox  \n 0  2  .  2 A student investigated whether using the right hand or the left hand had an effect on reaction time.  \nThe student only tested right-handed people.  \nDescribe a method for the student’s investigation.  \nInclude details of the test you would use for reaction time.  \n[4 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n\nQuestion 2 continues on the next page  \noutside the box  \nA different student carried out an investigation to see if playing tennis improved","cbCaieESkegQP9U8","https://ap.wps.com/l/cbCaieESkegQP9U8","pdf",1810020,28,"English","# DNA and genes\n## DNA molecule representation and structure\n## Gene coding and genome meaning\n## Human genome discoveries\n## Variation within a species\n# Reflex actions and reaction time\n## Reflex pathway to muscles\n## Reaction time experimental method\n## Tennis and reaction time data analysis\n# Food, habitats and biodiversity\n## Biodiversity definition\n## Uses of peat and environmental impact","[{\"question\":\"What is asked about DNA and genes in this paper?\",\"answer\":\"Students identify diagrams of DNA, describe DNA structure, complete gene-related sentences, and explain the term genome. They also answer a question about an important advance enabled by knowledge of the human genome.\"},{\"question\":\"How does the paper assess reflex actions?\",\"answer\":\"It requires describing how a stimulus from a hot pan reaches the muscle in the arm, using the nervous pathway for a reflex action.\"},{\"question\":\"What skills are tested in the reaction time and biodiversity questions?\",\"answer\":\"Students design a method to test reaction time (including test details), calculate a mean reaction time value from a table, and use evidence to support or refute a conclusion. For biodiversity, students define biodiversity, give a use of peat, and explain environmental harm caused by peat use without referring to biodiversity.\"}]","June 2020 QP - GCSE Combined Science: Trilogy Higher Tier Biology Paper 2H - DNA, genes, reflex actions, reaction time, biodiversity | PDF",71]