Answer:
It comes from the person whoever made it
Explanation:
In the cell, the function of the smooth endoplasmic reticulum is that it produce lipids, which are fats and oils. They also transport materials..
Answer:Disadvantages: Adult stem cells have a determined cell type and cannot be changed into tissues that differ from the ones that they came from. This limits the cells by allowing them to be used only in procedures that involve the same type of tissue that they came from.
Explanation:
The best answer is A.
A restriction enzyme is an enzyme that catalyzes the cleavage of DNA after recognizing a specific sequence of DNA.
Restriction enzymes are proteins produced by bacteria that cut DNA at specific sites. These enzymes are used by bacteria to defend against bacterial viruses known as bacteriophages. When a phage infects a bacteria, it inserts its DNA into the bacteria so as to be replicated.
The restriction enzyme thwarts the replication of the phage DNA by cutting it into many pieces. These enzymes have been isolated from bacteria by scientists and used as indispensable tools in recombinant DNA technology.
