Questions: 12. What is the correct flow of genetic information? a. RNA - DNA- protein b. mRNA-RNA-protein c. DNA-RNA-protein d. DNA-tRNA-protein 13. What process links DNA to RNA?

12. What is the correct flow of genetic information? a. RNA - DNA- protein b. mRNA-RNA-protein c. DNA-RNA-protein d. DNA-tRNA-protein 13. What process links DNA to RNA?
Transcript text: 12. What is the correct flow of genetic information? a. RNA - DNA- protein b. mRNA-RNA-protein c. DNA-RNA-protein d. DNA-tRNA-protein 13. What process links DNA to RNA?
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The answer to question 12 is option c: DNA-RNA-protein.

Explanation for each option: a. RNA - DNA - protein: This is incorrect. The flow of genetic information typically does not go from RNA to DNA to protein. This would imply reverse transcription followed by translation, which is not the standard flow. b. mRNA-RNA-protein: This is incorrect. mRNA is a type of RNA, and the flow does not go from mRNA to RNA to protein. c. DNA-RNA-protein: This is correct. This is known as the central dogma of molecular biology, where genetic information flows from DNA to RNA through transcription, and then from RNA to protein through translation. d. DNA-tRNA-protein: This is incorrect. While tRNA plays a role in translation, the flow of genetic information is not described as DNA to tRNA to protein.

For question 13, the process that links DNA to RNA is transcription. During transcription, a segment of DNA is used as a template to synthesize a complementary RNA strand, typically mRNA, which then carries the genetic information to the ribosome for protein synthesis.

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