Compare and contrast the bacteriophage lytic cycle and lysogeny by addressing (1) the rate of replication of the viral genome, (2) production of virions, and (3) effect on the host cell.

Question

Accepted Answer

Hello everyone. And in today's video we have the following problem. So which of the following statements about bacteriophages is incorrect. So remember that we're looking for the incorrect or the false statement um on our answer choices. Okay that in mind as we go over them but before we do go over them I want you to I want you to just recall certain aspects of bacteriophages. And these are viruses that contain ELISA genic and the latest cycle before we go into them. Since their bacterial phages these are gonna be viruses the attack bacteria. So this is where the word comes from. So keep that in mind as well. So now we have that this Liza genic and this little cycle can be broken down into passive replication and aggressive replication. So what do we mean by this? So here in the life cycle the replication of the virus occurs without killing the host and in the letter cycle this aggressive replication occurs where replication happens by killing the host. So these are the two differences or the difference between these two cycles of bacteriophages. Now that we know this let's jump into the answer choices so that we can solve the problem. Beginning by answer choice. A It is a various that infects bacteria. They're called bacteriophages. So it is very clear we're going to cancel this out because we're looking for the incorrect statement then we have answer choice B. It has both a lyric and elissa genic cycle here we have them written down in our definition. This is a correct statement. We're going to cancel this out as well. This is now where we get into each cycle individually. Beginning by the lyric one. So in the little cycle that inserts its D N. A and kills the host cell. As we can see here in the little cycle. It is aggressive replication that involves the killing of the host cell. This is actually a correct statement. So we're going to cancel it out and it's all left with answer choice. D in the lights, a genic cycle which we have here the face insert DNA into the host genome and kills the host cell. What we said that here replication occurs possibly or without killing the host cell. So this is going to be our incorrect statement and we're going to highlight it as the final answer to our question. So I really hope this video helped you and I hope I see you on the next one.

Compare and contrast the bacteriophage lytic cycle and lysogeny by addressing (1) the rate of replication of the viral genome, (2) production of virions, and (3) effect on the host cell.

Verified Solution

Key Concepts

Bacteriophage Lytic Cycle

Lysogeny

Impact on Host Cell