For example there is a probability a particular section in Plot1 has higher concentration of herbicides.
E (i) Coleoptile is a pointed protective sheath which grows towards the surface during germination. When the coleoptile has reached the surface it shops growing allowing flag leaves to penetrate its top. The coleoptiles function is to provide protection to the tender flag leave to the surface. It also has vertical water vessels to carry water throughout the germination process.
(ii) Magnification is different on different microscopes. To be certain that the reading are accurate a microscope must be calibrated before use. However, there is still a small scope of error after calibration is complete. A non calibrated microscope will profile incorrect data.
(iii) Toluidine blue stains the cells wall it is applied to on the basis of organic composition of the subject. Applying Toluidine blue to coleoptile stains the epidermal and cortical cells making them visible under a microscope. When the cross section is used under the microscope, we can easily distinguish the epidermal and cortical cells of the coleoptile.
(iv) The study was conducted to find the changes found in the coleoptile exposed to gamma radiation. To cover all aspects it is necessary that we measure the epidermal and cortical cells as each might reach differently to the gamma radiation. Therefore we measure the measure both the epidermal and cortical cells.
I placed the test tube holder on the platform and stood the test tube in its hold. I also removed the cap. We then positioned the stand of the Cs/Ba isotope generator over the test tube and ensured that the hole in the top of the stand is centred over the test tube. I removed the both the red end-caps of the isotope generator while handling it with tongs. The writing on the generator was made to face upwards.
I then attached a piece of plastic tubing to a syringe and drew up 2