Answer:
Restriction Enzymes
Explanation:
It is restriction enzymes specifically, which are used to cut DNA into fragments. Restriction enzymes can be regarded as biological scalpels which can produce either a blunt end or sticky end in DNA.
Answer:
the answer may be optionA..
Answer:
Sunlight
Explanation:
Cuz plants need sunlight for photosynthesis but plants throw out oxygen
Answer:
I think it is a pure substance, not 100% though.