The answer is B. Primase produces RNA, making it a type of RNA polymerase. RNA is complimentary to a single strand of DNA.
The answer is 30 to 80 percent its in google
The correct answer is A. They are synthesized.
In the endoplasmic reticulum, proteins are synthesized on to the surface of a rough endoplasmic reticulum. With the help of ribosomes which contains mRNA, the small bounded organelles enter the chamber where mRNA which contains proteins is being released.
Endoplasmic reticulum also regulates the quality of the proteins.
I believe it is Carbon Dioxide. When we take in Oxygen, we breathe out Carbon Dioxide.