Gel electrophoresis is a technique used to separate DNA fragments according to their size. This is from Khan academy so I believe it is reliable.
Answer:
Radioactive labeling is a procedure used to monitor the path followed by a chemical element within a biological system to demonstrate the source.
Hypothesis:
The free oxygen produced during photosynthesis comes from water.
Procedure.
Single-celled algae were placed in four petri dishes containing carbon dioxide, glucose dissolved in Water.
In each box the oxygen was radioactively marked.
1 petri dish with CO2 marked. Experimental groups
2 petri dish with H2O marked. Experimental groups
3 petri dish with Glucose marked. Experimental groups (control)
4 petri dish with CO2 + H2O + Glucose, all marked. (control).
The statement which should be categorized only in the aerobic section of the Venn diagram is PRODUCES WATER.
There are two basic types of respiration, these are aerobic and anaerobic respiration. Aerobic respiration is the type of respiration that takes place in the presence of oxygen while anaerobic respiration is the type of respiration that takes place in the absence of oxygen. It is only during the process of aerobic respiration that water is produced.<span />
