identify bacteria that contain a recombinant plasmid, a marker gene is often added to the desired gene first, before they are both inserted into the plasmid. Then bacteria are tested for the marker and it is these ones that the scientists will know also contain the desired gene. Digital: TBC CB5a Health and B5.1 Describe health as a state of 1) Write the words health Provide data that students Show the relationship disease complete physical, mental and disease on the board analyse to compare between HIV infection and social well-being and not and ask students to communicable and and infections with merely the absence of suggest words that could communicable diseases. cytomegalovirus, disease or infirmity, as be linked with these, and Compare the distribution of Epstein Barr, human defined by the World Health how they should be new cases of cancer per year herpesvirus 1 and Organisation (WHO). linked. Encourage class with the number of measles human herpesvirus 8. discussion. cases per year. This will show Discuss with students B5.2 Describe the difference that the numbers are relatively which values in the between communicable and 2) Without explaining steady each year for cancer, table should be non-communicable diseases. what you are doing, write while those for measles can compared to identify the names of a few vary considerably from year to whether or not there is B5.3 Explain why the presence of familiar diseases on the year. This can be related to a correlation between one disease can lead to a board (e.g. 'flu, measles, the fact that measles is infection with HIV and
identify bacteria that contain a recombinant plasmid, a marker gene is often added to the desired gene first, before they are both inserted into the plasmid. Then bacteria are tested for the marker and it is these ones that the scientists will know also contain the desired gene. Digital: TBC CB5a Health and disease B5.1 B5.2 B5.3 Describe health as a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity, as defined by the World Health Organisation (WHO). Describe the difference between communicable and non-communicable diseases. Explain why the presence of one disease can lead to a 1) Write the words health and disease on the board and ask students to suggest words that could be linked with these, and how they should be linked. Encourage class discussion. 2) Without explaining what you are doing, write the names of a few familiar diseases on the board (e.g. 'flu, measles, Provide data that students analyse to compare communicable and diseases. Compare the distribution of new cases of cancer per year with the number of measles cases per year. This will show that the numbers are relatively steady each year for cancer, while those for measles can vary considerably from year to year. This can be related to the fact that measles is communicable Show the relationship between HIV infection and infections with cytomegalovirus, Epstein Barr, human herpesvirus 1 and human herpesvirus 8. Discuss with students which values in the table should be compared to identify whether or not there is a correlation between infection with HIV and