Answer:
Restriction endonuclease
Explanation:
It cut the DNA at specific sequence and it is very useful in biotechnology
Double fertilization occurs in Angiosperms
Nucleotide!
When attached in a polymer, they become a nucleic acid.
If you are wanting to know what that is in English, the answer is 'How do I intentionally vomit?' If you want to know how to do that, I guess stick your finger down your throat.