1. What was the first virus ever discovered?
2. Which of the following cannot be the stucture of the genes of a virus?
3. What type of molecule is the capsid surrounding the virus made of?
4. What is the reproductive cycle of a phage virus called in which the virus's DNA is combined with the host cell's DNA to form a prophage?
5. Which enzyme are retroviruses equiped with that allows them to transcribe DNA from an RNA template?
6. What are the tiny molecules of naked circular RNA that infect plants called?
7. What is the major component of the bacterial genome?
8. How do bacterial cells divide and reproduce?
9. True or False: Bacterial cells undergo genetic recombination.
10. What is the direct transfer of genetic material between two bacterial cells that are temporarily joined?
- AIDS virus/ Epstein-Barr virus /Rhinovirus /Tobacco mosaic virus
2. Which of the following cannot be the stucture of the genes of a virus?
- Single stranded DNA Double stranded DNA Double stranded RNA A stand composed of both RNA and DNA
3. What type of molecule is the capsid surrounding the virus made of?
- DNA/ Protein /RNA /Cellulose
4. What is the reproductive cycle of a phage virus called in which the virus's DNA is combined with the host cell's DNA to form a prophage?
- Lytic cycle /Mitosis/ Meiosis I /Lysogenic cycle
5. Which enzyme are retroviruses equiped with that allows them to transcribe DNA from an RNA template?
- DNA polymerase/ Reverse transcriptase/ Primase/ Ligase
6. What are the tiny molecules of naked circular RNA that infect plants called?
- Prions Viroids/ RNA /viruses /Tobacco mosaic virus
7. What is the major component of the bacterial genome?
- One double-stranded, circular DNA molecule One single-stranded, circular RNA molecule One double-stranded, linear DNA molecule None of the above
8. How do bacterial cells divide and reproduce?
- Meiosis I/ Binary fission/ Binary fusion/ Meiosis II
9. True or False: Bacterial cells undergo genetic recombination.
- True /False
10. What is the direct transfer of genetic material between two bacterial cells that are temporarily joined?
- Transduction/ Conjugation/ Transformation/ Recombination