# Grade 12 Life Sciences Quizzes > Quick topic quizzes for Grade 12 Life Sciences. Test your recall, get instant feedback, and build real exam confidence. - Page: https://www.hlayiso.com/grade-12/life-sciences/quizzes - Quizzes: 67 - Topics: 9 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Grade 12](https://www.hlayiso.com/grade-12) › [Life Sciences](https://www.hlayiso.com/grade-12/life-sciences) › [Quizzes](https://www.hlayiso.com/grade-12/life-sciences/quizzes) ## Quizzes by topic Create a free Hlayiso account to take the quizzes and track your scores. ### DNA: THE CODE OF LIFE - DNA profiling — 10 questions - DNA replication — 10 questions - DNA: location, structure and functions — 10 questions - Introduction — 10 questions - Protein synthesis — 10 questions - RNA: location, Structure and function — 10 questions ### MEIOSIS - Abnormal Meiosis — 10 questions - Comparison of Mitosis and Meiosis — 20 questions - Importance of Meiosis — 10 questions - Introduction to Meiosis — 10 questions - Meiosis – The Process — 10 questions ### REPRODUCTION IN VERTEBRATES - Diversity of reproductive strategies — 10 questions ### HUMAN REPRODUCTION - Fertilisation and Early Development — 10 questions - Gametogenesis — 10 questions - Implantation, Gestation and the Placenta — 10 questions - Introduction to Human Reproduction — 10 questions - Puberty and Hormonal Control — 20 questions - The Female Reproductive System — 10 questions - The Male Reproductive System — 10 questions - The Menstrual Cycle — 10 questions ### GENETICS AND INHERITANCE - Blood Grouping (ABO System) — 10 questions - Dihybrid Crosses — 10 questions - Genetic Engineering and Biotechnology — 10 questions - Genetic Lineages and Pedigree Diagrams — 10 questions - Introduction to Genetics and Inheritance — 10 questions - Key Concepts in Inheritance — 10 questions - Linking Genetics Topics — Exam Revision Guide — 10 questions - Monohybrid Crosses — 10 questions - Mutations — 10 questions - Paternity Testing and DNA Profiling — 10 questions - Sex Determination — 20 questions - Sex-Linked Inheritance — 10 questions ### RESPONDING TO THE ENVIRONMENT (Humans) - Autonomic nervous system — 20 questions - Central nervous system — 10 questions - Disorders of the CNS — 10 questions - Human ear — 10 questions - Human eye — 10 questions - Human nervous system — 10 questions - Introduction — 10 questions - Peripheral nervous system — 10 questions - Receptors — 10 questions - Structure and functioning of a nerve — 10 questions - The simple reflex arc — 10 questions ### HUMAN ENDOCRINE SYSTEM AND HOMEOSTASIS IN HUMANS - Blood carbon dioxide levels — 10 questions - Blood glucose levels — 10 questions - Endocrine system — 10 questions - Homeostasis: Negative feedback mechanisms — 10 questions - Introduction – Homeostasis — 10 questions - Salt concentration — 10 questions - Thermoregulation — 10 questions - Thyroxin levels — 10 questions - Water balance (Osmoregulation) — 10 questions ### RESPONDING TO THE ENVIRONMENT (PLANTS) - Plant defence mechanisms — 10 questions - Plant hormones — 10 questions ### EVOLUTION - Artificial selection — 10 questions - Darwinism — 10 questions - Evidence for evolution — 10 questions - Evidence of common ancestors for living hominids — 10 questions - Evolution in present times — 10 questions - Formation of new species — 10 questions - Introduction to Evolution — 10 questions - Lamarckism — 20 questions - Mechanisms of reproductive isolation — 10 questions - Origin of an idea about origins — 10 questions - Out-of-Africa hypothesis — 10 questions - Punctuated Equilibrium — 10 questions - Variation — 10 questions ## Frequently asked questions ### How long are the Grade 12 Life Sciences quizzes? Most topic quizzes have 10 to 20 questions. ### Are the quiz questions exam-style? Yes. Questions are modelled on real NSC and provincial past papers so practising here mirrors the exam experience. ### Do I get explanations for wrong answers? Every question has a worked explanation. ### Does my progress get tracked? Sign in to save your score history, streaks, and mastery per topic across Grade 12 Life Sciences. --- Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. When citing, link the page URL above, not a PDF or /api/ URL.