Use a Punnett square and a chromosomes are genetic cross diagram to the same (XX); in illustrate the inheritance of sex; males the evaluate the chance of chromosomes are producing a male or female. different (XY). 4.6.1.4 DNA. Describe the structure of 1 Recap key ideas by asking Appreciate the and chromosomes, DNA and students to reorder by size: limitations of science and DNA is a polymer genes. cell, nucleus, DNA, consider any ethical made up of two Ethical issues: chromosome, gene, nucleotide. issues. strands forming a Explain that a gene is a small double helix. Debate: research and discuss section of DNA that codes for profiling’ for health. ‘DNA DNA is found in Extract DNA from fruits a particular sequence of chromosomes. Research roles of Franklin, such as onions or kiwi fruit. amino acids to make a specific Watson and Crick in the Observe the long strands protein. A gene is a small discovery of the structure of which are the polymer. section of DNA. Describe what the genome is. DNA. Each gene codes Explain how knowledge of the Demo or practical to extract for a sequence of human genome will help DNA. amino acids to medicine in the future, eg form a particular identifying genes linked to protein. cancers, understanding and treating inherited disorders. It The genome is all will also help trace human the genetic migration patterns. material of an organism. Explain the ethical issues related to DNA sequencing. The human genome has been studied and will be
chromosomes are the same (XX); in males the chromosomes are different (XY). Use a Punnett square and a genetic cross diagram to illustrate the inheritance of sex; evaluate the chance of producing a male or female. 4.6.1.4 DNA. DNA is a polymer made up of two strands forming a double helix. DNA is found in chromosomes. A gene is a small section of DNA. Each gene codes for a sequence of amino acids to form a particular protein. The genome is all the genetic material of an organism. The human genome has been studied and will be Describe the structure of chromosomes, DNA and genes. Explain that a gene is a small section of DNA that codes for a particular sequence of amino acids to make a specific protein. Describe what the genome is. Explain how knowledge of the human genome will help medicine in the future, eg identifying genes linked to cancers, understanding and treating inherited disorders. It will also help trace human migration patterns. Explain the ethical issues related to DNA sequencing. 1 Recap key ideas by asking students to reorder by size: cell, nucleus, DNA, chromosome, gene, nucleotide. Debate: research and discuss ‘DNA profiling’ for health. Research roles of Franklin, Watson and Crick in the discovery of the structure of DNA. Demo or practical to extract DNA. Appreciate the and limitations of science and consider any ethical issues. Extract DNA from fruits such as onions or kiwi fruit. Observe the long strands which are the polymer. Ethical issues:
AQA-8461-SOW-IVE.DOCX