Which nucleic acid statement is true
A. mRNA codes for DNA
B. mRNA codes for proteins
C. tRNA makes amino acids
D. tRNA makes lipids
I think B
To determine which statement is true about nucleic acids, let's analyze each option:
A. mRNA codes for DNA: This statement is incorrect. DNA, not mRNA, serves as the genetic material that codes for proteins.
B. mRNA codes for proteins: This statement is correct. Messenger RNA (mRNA) carries the instructions from DNA to the ribosomes (the cellular machinery) to synthesize proteins.
C. tRNA makes amino acids: This statement is incorrect. Transfer RNA (tRNA) does not make amino acids; instead, tRNA carries specific amino acids to the ribosomes during protein synthesis.
D. tRNA makes lipids: This statement is incorrect. tRNA is not involved in the synthesis of lipids.
Based on the analysis, option B is the correct statement. mRNA codes for proteins.