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Use Of Plant Hormones (ht Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Use Of Plant Hormones (ht Only)' from the broader topic Homeostasis And Response. The test is geared towards the AQA exam board style syllabus.
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Which practice uses auxin to reduce the number of side branches and produce a cleaner single-stemmed ornamental?
How can auxin be used to produce seedless fruit (parthenocarpy) in some crops?
Which hormone is often used in plant tissue culture to stimulate shoot formation from callus tissue?
A horticulturist applies auxin paste to graft unions. Which effect is most likely and beneficial?
How do growers use plant hormones to propagate disease-free plants via micropropagation?
Which method best reduces spread of hormone residue contamination between treated and untreated fruit?
How do growers use gibberellins to manage flowering in nursery stock (e.g., to induce earlier flowering)?
What is the primary reason farmers might use a hormone-based weedkiller (synthetic auxin) rather than mechanical weeding?
Which hormone would a grower use to increase the number of seedless grapes produced commercially?
A fruit packer wants to delay apple ripening for longer shelf life. Which hormone treatment or storage condition is best?
What is a potential downside of using auxin-based herbicides extensively on farmland?