Quiz: DNA And RNA Transcription, Translation And Transport!

28 Questions | By Virologi | Last updated: Mar 21, 2022 | Total Attempts: 160

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Quiz: DNA And RNA Transcription, Translation And Transport! - Quiz

The translation is the process that takes the information passed from DNA as messenger RNA and turns it into a series of amino acids bound together with peptide bonds. The other process, according to what we covered in class through which RNA is used to produce proteins, is called translation. Take this test and see how much you recall about DNA and RNA transcription, translation, and transportation.

Questions and Answers

1.

Pararetroviruse (Class VII) is DNA viruses which carry out reverse transcription.
- A.
  
  TRUE
- B.
  
  FALSE
2.

Which of the following is the transcription factors are involved in HIV-1 transcription.
- A.
  
  AP-1 and AP-2 (activator proteins 1 and 2)
- B.
  
  Sp1 (stimulatory protein 1)
- C.
  
  NF-κB (nuclear factor κB).
- D.
  
  All of the above
3.

When classes IV and VI viruses infect cells, only the Class IV genomes can function as mRNA.
- A.
  
  TRUE
- B.
  
  FALSE
4.

Tissue-specific transcription factors are required by some viruses, which probably explains why some viruses are tissue-specific.
- A.
  
  TRUE
- B.
  
  FALSE
5.

A (+) RNA genome has the same sequence as the corresponding mRNA.
- A.
  
  TRUE
- B.
  
  FALSE
6.

The following consensus sequence is present in the promoters of many eukaryotic cell and virus genes: T A T A A/T A A/T A/G.
- A.
  
  TRUE
- B.
  
  FALSE
7.

Some viruses produce their own transcription factors, such as herpes simplex virus VP16, which is a component of the virion, and human T cell leukemia virus I Tax protein, which is produced in the infected cell.
- A.
  
  TRUE
- B.
  
  FALSE
8.

Viruses that replicate in the nucleus generally use a cell enzyme, while viruses that replicate in the cytoplasm encode their own.
- A.
  
  TRUE
- B.
  
  FALSE
9.

A DNA virus needs a DNA-dependent RNA polymerase to transcribe its genes into mRNA.
- A.
  
  TRUE
- B.
  
  FALSE
10.

All the viruses that carry out transcription in the cytoplasm, except the plus-strand RNA viruses, have the transcriptase in the virion so that the enzyme is immediately available to transcribe the virus genome when a cell is infected.
- A.
  
  TRUE
- B.
  
  FALSE
11.

The retroviruses and the pararetroviruses perform reverse transcription using enzymes known as reverse transcriptases.
- A.
  
  TRUE
- B.
  
  FALSE
12.

Many of the viruses that replicate in the cytoplasm encode their own capping and methylating enzymes, these viruses include ___________
- A.
  
  Poxviruses
- B.
  
  Reoviruses
- C.
  
  Coronaviruses
- D.
  
  All of the above
13.

The mammalian hepadnaviruses use sequences TATAAA as polyadenylation signals.
- A.
  
  TRUE
- B.
  
  FALSE
14.

The first evidence of split genes was reported in 1977 after studies with adenoviruses.
- A.
  
  TRUE
- B.
  
  FALSE
15.

Sendai virus uses AUG as the initiation codon for one of its genes.
- A.
  
  FALSE
- B.
  
  FALSE
16.

Internal ribosome entry sites (IRESs) are present in a number of RNA viruses, including hepatitis C virus and the picornaviruses
- A.
  
  TRUE
- B.
  
  FALSE
17.

Most eukaryotic cell and virus mRNAs have one ORF, but there are a number of virus mRNAs that have two or more ORFs.
- A.
  
  TRUE
- B.
  
  FALSE
18.

A few virus glycoproteins are nonstructural proteins, such as the rotavirus protein NSP4.
- A.
  
  TRUE
- B.
  
  FALSE
19.

Virus mRNAs are transported from the nucleus to the cytoplasm, and virus proteins may be transported to various locations, including the nucleus.
- A.
  
  TRUE
- B.
  
  FALSE
20.

Progeny virions may bud from the plasma membrane or the nuclear envelope.
- A.
  
  TRUE
- B.
  
  FALSE
21.

Enrique Rodriguez-Boulan and David Sabatini in 1978 discovered that vesicular stomatitis virus buds from the apical surface , while influenza virus buds fromthe basolateral surface.
- A.
  
  TRUE
- B.
  
  FALSE
22.

Nuclear localization signal is PKKKRKV was first identified in a simian virus 40 protein known as large T antigen.
- A.
  
  TRUE
- B.
  
  FALSE
23.

The Rev protein of HIV-1 has both a nuclear localization signal and a nuclear export signal.
- A.
  
  TRUE
- B.
  
  FALSE
24.

Introns are rarely present in the genes of bacteria and their viruses.
- A.
  
  TRUE
- B.
  
  FALSE
25.

The mRNAs of bacteria and their viruses are capped at the 5’ end, and are polyadenylated at the 3’ end.
- A.
  
  TRUE
- B.
  
  FALSE