so in the genetic tech section of the syllabus, you need to know exactly how artificial insemination and artificial pollination works enough so you can also compare their processes and outcomes, know the processes of the different types of cloning (whole organism + gene), know the process of recombinant DNA technology. these are all used in fields of medicine/agriculture/industry and the rest of the section is looking at their benefits, usefulness and impact on society. not only can they can ask about specific technologies and ask you to explain them, how they work or their impact on agriculture or something. they can also ask you to evaluate their benefits in society or any ethical uses. you need to know a decent real-life examples in depth - i recommend knowing the most known and used ones like crispr/cas9 (genetic engineering), golden rice (transgenic species), etc so then you can know in-depth their effect on biodiversity and benefits and ethical uses.
in the biotechnologies section it's just generalised stuff, as long as you know your examples to integrate when answering qs you should be fine