Question

Is RNA directly used in DNA replication?

1.RNA is not involved during the process of genome replication

2.RNA is needed to provide the 3' -OH groups at the start of construction of new DNA

3.tRNA is matched to the codons on the genome during DNA replication

4.All of the monomers used to construct the new DNA molecule are first constructed as RNA and then a -CH3 group is added

Answer 1

1. Sequestration of the viral genome within the compartment provides a mechanism for regulating the processes of replication, transcription, translation, and assembly that all compete for use of the genomic RNA in RNA Replication.

2. New DNA is synthesized from deoxyribonucleoside triphosphates (dNTPs).

(A) A deoxyribonucleoside triphosphate (dNTP).

(B) During DNA replication, the 3'-OH group of the last nucleotide on the new strand attacks the 5'-phosphate group of the incoming dNTP. Two phosphates are cleaved off.

(C) A phosphodiester bond forms between the two nucleotides, and phosphate ions are released.

3. An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence. An anticodon is found at one end of a transfer RNA (tRNA) molecule. During protein synthesis, each time an amino acid is added to the growing protein, a tRNA forms base pairs with its complementary sequence on the mRNA molecule, ensuring that the appropriate amino acid is inserted into the protein.

4. All of the monomers used to construct the new DNA molecule are first constructed as RNA and then a -CH3 group is added.

Therefore, Option A is incorrect.