Table of Contents
- 1 Where does viral transcription occur?
- 2 Where does transcription of DNA into RNA occur?
- 3 Where does translation of viral RNA happen?
- 4 Can viral RNA be transcribed?
- 5 Where does transcription of DNA into RNA occur quizlet?
- 6 Where does transcription translation and replication occur?
- 7 What is RNA transcription?
Filovirus replication and transcription take place in the cytoplasm of the infected cells. The viruses encode their own RNA-dependent RNA polymerase, which recognizes the encapsidated negative-strand RNA genome as a template for replication and transcription.
Where does transcription of DNA into RNA occur?
Transcription takes place in the nucleus. It uses DNA as a template to make an RNA (mRNA) molecule. During transcription, a strand of mRNA is made that is complementary to a strand of DNA. Figure 1 shows how this occurs.
Translation of Genomic RNA. Once the virus has been uncoated and its RNA released into the host cell cytoplasm, the positive-strand RNA genome is translated. This viral mRNA contains cis-acting RNA sequence and structural elements distinct from those of host cell mRNAs.
Where are viral genes transcribed into mRNA?
Each of the five viral proteins is encoded on individual monocistronic messenger RNAs (mRNA). These mRNAs are capped, methylated and polyadenylated by the enzymes packaged in the virion. Transcription proceeds following attachment of the polymerase complex to the genome promoter at the terminal 3′ end of the genome.
How does transcription occur in RNA virus?
Transcription and translation The mRNAs are made by virally-coded RNA polymerase packaged in the virion. The RNA is capped and methylated by virion packaged enzymes. It is then extruded from the vertices of the capsid. The mRNAs are translated and the resulting viral proteins assemble to form an immature capsid.
Transcription / mRNA production For others with negative stranded RNA and DNA, viruses are produced by transcription then translation. The mRNA is used to instruct the host cell to make virus components. The virus takes advantage of the existing cell structures to replicate itself.
Where does transcription of DNA into RNA occur quizlet?
Transcription occurs where? Nucleus of a cell.
Where does transcription translation and replication occur?
DNA replication occurs in the nucleus. DNA transcription occurs in the nucleus. mRNA translation occurs at ribosomes.
Where do RNA viruses replicate?
RNA replication occurs in the cytoplasm and is carried out by the viral RNA polymerase. The full length plus strand is coated with nucleocapsid protein as it is made (mRNAs are not coated with this protein, which would interfere with the host protein translation machinery).
Is RNA involved in transcription?
The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA. Specifically, RNA polymerase builds an RNA strand in the 5′ to 3′ direction, adding each new nucleotide to the 3′ end of the strand.
What is RNA transcription?
Transcription = Transcription is the process of making an RNA copy of a gene sequence. This copy, called a messenger RNA (mRNA) molecule, leaves the cell nucleus and enters the cytoplasm, where it directs the synthesis of the protein, which it encodes.