The nucleus always contains one or more protons.
Answer:
it allows only some materials to pass through and leave the cell.
Answer:Since DNA is double-stranded, two different RNA molecules could in principle be transcribed from any gene, using each of the two DNA strands as a template.
Explanation:During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA
Answer:
D. the genetic material of living organisms
Explanation:
3 is the correct answer. Let me know if you want me to explain why that is the answer.