Final Exam Written Anwsers Flashcards
What is the first step of the lyric cycle?
1.) Bacteriophage attaches to the cell wall of the bacterial cell, and injects it’s nucleic acid (DNA or RNA) into the cell.
-The protein coat and tail fibres never enter the host cell.
What is the second step of the lytic cycle?
-The host cell DNA is destroyed or altered and is forced to replicate the viral nucleic acid.
What is the third step of the lytic cycle?
3.) Protein coats or canids are made.
What is the fourth step of the lytic cycle?
4.) New viruses are properly assembled by putting the nucleic acid inside the protein coats.
What is the fourth step of the lytic cycle?
4.) New viruses are properly assembled by putting the nucleic acid inside the protein coats.
What is the fifth step of the lytic cycle?
The bacteria cell ruptures and releases up to 300 new bacteriophages which may go on to attack other bacteria cells.
What is an example of lytic bacteriophage?
-T4 bacteriophage, which attacks E.coli in the intestines.
