Each of the following statements about protein synthesis is false. Correct each to make a true statement.
The enzyme RNA polymerase builds a strand of transfer RNA, whose codons are complementary to DNA's triplets.

검증된 단계별 안내

Identify the incorrect statement: The problem states that RNA polymerase builds a strand of transfer RNA (tRNA) whose codons are complementary to DNA's triplets. This is false because RNA polymerase synthesizes messenger RNA (mRNA), not tRNA.

Understand the correct function of RNA polymerase: RNA polymerase is responsible for transcribing DNA into mRNA. During transcription, RNA polymerase reads the DNA template strand and synthesizes a complementary strand of mRNA.

Clarify the role of mRNA: mRNA contains codons, which are sequences of three nucleotides that correspond to specific amino acids or stop signals during protein synthesis. These codons are complementary to the DNA triplets on the template strand.

Explain the role of tRNA: Transfer RNA (tRNA) does not get synthesized by RNA polymerase. Instead, tRNA carries amino acids to the ribosome during translation. Each tRNA molecule has an anticodon that pairs with the complementary codon on the mRNA strand.

Correct the statement: RNA polymerase builds a strand of messenger RNA (mRNA), whose codons are complementary to DNA's triplets. This mRNA is then used during translation to guide the assembly of a protein.

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주요 개념

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RNA Polymerase

RNA polymerase is an essential enzyme in the process of transcription, where it synthesizes RNA from a DNA template. It binds to the promoter region of a gene and unwinds the DNA strands, allowing it to create a complementary RNA strand. This process is crucial for protein synthesis, as it produces messenger RNA (mRNA) that carries genetic information from DNA to ribosomes.

Transfer RNA (tRNA)

Transfer RNA (tRNA) is a type of RNA molecule that plays a key role in translating the genetic code from mRNA into proteins. Each tRNA molecule carries a specific amino acid and has an anticodon that is complementary to the codon on the mRNA strand. This ensures that the correct amino acids are added in the proper sequence during protein synthesis.

Codons and Anticodons

Codons are sequences of three nucleotides on mRNA that correspond to specific amino acids or stop signals during protein synthesis. Anticodons are the complementary three-nucleotide sequences found on tRNA that pair with the codons on mRNA. This pairing is essential for the accurate translation of the genetic code into functional proteins.

Each of the following statements about protein synthesis is false. Correct each to make a true statement.The enzyme RNA polymerase builds a strand of transfer RNA, whose codons are complementary to DNA's triplets.