Answer: alternative D.
Explanation: For the DNA to have the double strand structure, it is necessary to copy the sequence of the existing DNA strand in a complementary sequence of nucleotides, forming hydrogen bonds between them. The mRNA also uses this strategy when reading the DNA strand during the transcription, in order for the translation to begin.
I can tell you that it is NOT B.
I got it wrong.
Answer:
It's bases of an object's position
1. True
2. False
3. True
4. True
5. False