Viruses that attack bacteria are called
A. bactericides
B. prions
C. viroids
D. bacteriophage
Viruses that attack bacteria are called
A. bactericides
B. prions
C. viroids
D. bacteriophage
The correct option is: D
Explanation of the correct option:
Bacteriophage or phage, in short, is a virus that attacks/infects a bacterium and inside which it replicates and reproduces. It comes in a large variety of sizes and shapes. These bacteriophages have genetic material such as DNA or RNA encapsulated in a capsid, attached to a tail that has fibers that are used for attachment on the bacterial cell surface. Most of the phages have a polyhedral capsid except the filamentous ones.
Explanation of the incorrect option:
Option A: Bactericides are chemicals that have the capability to kill bacteria. The growing spores of bacteria are targeted with the help of these chemicals.
Option B: Viroids are small infectious agents composed only of naked RNA molecules without a protein covering the capsid, unlike viruses. They are agents of certain plant diseases.
Option C: Prions, unlike a normal virus or viroid, do not contain any nucleic acid-like DNA or RNA, instead are abnormal forms of infectious proteins that can cause diseases in animals.
Final answer: Viruses that attack bacteria are called Bacteriophage
The correct option is: D
Explanation of the correct option:
Bacteriophage or phage, in short, is a virus that attacks/infects a bacterium and inside which it replicates and reproduces. It comes in a large variety of sizes and shapes. These bacteriophages have genetic material such as DNA or RNA encapsulated in a capsid, attached to a tail that has fibers that are used for attachment on the bacterial cell surface. Most of the phages have a polyhedral capsid except the filamentous ones.
Explanation of the incorrect option:
Option A: Bactericides are chemicals that have the capability to kill bacteria. The growing spores of bacteria are targeted with the help of these chemicals.
Option B: Viroids are small infectious agents composed only of naked RNA molecules without a protein covering the capsid, unlike viruses. They are agents of certain plant diseases.
Option C: Prions, unlike a normal virus or viroid, do not contain any nucleic acid-like DNA or RNA, instead are abnormal forms of infectious proteins that can cause diseases in animals.
Final answer: Viruses that attack bacteria are called Bacteriophage
