Explain how to focus a microscope using the high power lens. include any safety issues you need to be aware of.

You would have to try on order to hurt yourself. Assuming you did the proper procedures Before and the specimen is fully in sight on the x and y axis and height is the only other thing to look at, then grab the fine adjustment knob ( the smaller coarse adjustment knob), and move it to the desired height. If the specimen starts to get blurry, turn the other way. This is a lot easier if your hand doesn’t move a lot when being held still

the backbone of the dna and rna compound is sugar phosphate.