Which of the following statements is true about dna A. Amino acids chains form dna
B. None of the above
C. Uracil is present in dna in place of thyamine
D. The site of transcription is within the nucleus

D. The site of transcription is within the nucleus

Explanation:

this is because the process of DNA is converted into RNA

This requires a protein called RNA polymerase. It will copy certain regions of DNA and convert them into RNA (this occurs in the nucleus) and then this RNA goes to the cytoplasm, where it will be translated into a protein.

Therefore, its D.

a physical change is being made.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.