One option is that the samples run through gel electrophoresis is too small to be recognized (shorter strands of DNA travel further through the gel and larger strands travel shorter). The other option in that the restriction enzyme did not cut the DNA in the proper spot or there was a mutation in the bases that allowed for a mistake in the cutting; that is why there are 800 base pairs in one sample (that's a lot) An example of a mutation is that lets say the restriction enzyme was supposed to cut at the second G in GGACC. But if that G was turned into an A, then the restriction enzyme wouldn't cut there.
For number 5, you might have 800 because of the restriction enzyme cutting it wrong, a mutation that allowed for the cutting to not take place, or a fault in the sample taking.
I am an AP Biology student right now in Wisconsin. I just finished that worksheet this morning :) anymore questions just hit me up
<span>You should use the two finger technique at the sternum and give 30 chest compressions at a quick pace (100 times/minute pacing). Push hard and push fast is important for CPR.</span>
Answer:
level consumers in the food chain are carnivores (flesh-eating), insectivores (insect-eating), or omnivores (flesh-and plant-eating). A wetland example of a food chain: pickleweed, is eaten by salt marsh harvest mice, which are eaten by clapper rails, which are eaten by peregrine falcons.
Explanation:
A.)
The student had to assume that starch was made from the glucose created in photosynthesis in order to conclude that no starch was present in the leaf areas that lacked chlorophyll and could not perform photosynthesis.
